This dual launch pad complex was built for the Thor ballistic missile program in 1956. Pad 17A supported its first Thor launch on 30 August 1957, and Pad 17B supported its first Thor launch on 25 January 1957. In addition to Thor missile launches, Complex 17 began supporting space launches in the late 1950s. The site was modified in the early 1960s to support a whole host of launch vehicles derived from the basic Thor booster. Thirty-five Delta missions were launched from Complex 17 between the beginning of 1960 and the end of 1965. Six ASSET (Aerothermodynamic/Elastic Structural Systems Environmental Test) launches were also conducted at Complex 17 between 18 September 1963 and 24 February 1965. The Air Force transferred Complex 17 to NASA in the spring of 1965, but the site was returned to the Air Force in October 1988 to support the Delta II program. As Delta II launches continued over the next decade, Pad 17B was modified in 1997 to support a new, more powerful launch vehicle - the Delta III. In all, Complex 17 supported 274 major missile and space launches between January 1957 and the end of October 1998.

• 1957 January 26 - Series I research and development launch Launch Vehicle: Thor DM-18. Lox contamination, led to a valve failure. Thrust decayed, the booster settled back throught the thrust ring, causing an oxygen fire, followed by booster explosion.. Thor DM-18 101 First attempted test flight of USAF Thor IRBM, only 13 months after first production contracts were signed, failed to launch.

• 1957 Apr 20 0433? 04:33 - Series I research and development launch Launch Vehicle: Thor DM-18. Console wiring error resulted in erroneous tracking indication; destroyed by range safety.. Thor DM-18 102 Douglas Thor IRBM (XSM-75) was launched at Cape Canaveral, Fla., destroyed by range safety officer. The missile was actually on course throughout its flight. The console wiring error led the range safety officer to believe it was headed inland rather than out to sea, so he hit the destruct button.

• 1957 May 22 0300? 03:00 - Series I research and development launch Launch Vehicle: Thor DM-18. Stuck valve resulted in tank pressure buildup followed by booster explosion.. Thor DM-18 103

• 1957 August 30 - Series I research and development launch Launch Vehicle: Thor DM-18. Broke up after 92 seconds.. Thor DM-18 104

• 1957 September 20 - Series I research and development launch Launch Vehicle: Thor DM-18. Thor DM-18 105 Apogee: 520 km (320 mi). Range: 1,800 km (1,100 mi). Complete USAF Thor IRBM first successfully launched from Cape Canaveral. Dummy Warhead sent to 1800 km range.

• 1957 Oct 3 1713? 17:13 - Series I research and development launch Launch Vehicle: Thor DM-18. Fell back on pad, followed by explosion.. Thor DM-18 107

• 1957 Oct 11 1629? 16:29 - Series I research and development launch Launch Vehicle: Thor DM-18. Turbopump gearbox failure.. Thor DM-18 108 Apogee: 520 km (320 mi). Range: 2,780 km (1,720 mi). Thor missile launched at Cape Canaveral, the second tested, achieved its designed 1,500-mile range.

• 1957 October 24 16:32 - Series I research and development launch Launch Vehicle: Thor DM-18. Thor DM-18 109 Apogee: 520 km (320 mi). Range: 4,400 km (2,700 mi). Stripped down Thor long-range flight test successful from AMR, impacting 4400 km downrange.

• 1957 December 7 22:11 - Research and development Series II Test mission Launch Vehicle: Thor DM-18. Thor DM-18 112 Apogee: 520 km (320 mi).

• 1957 December 19 20:12 - Research and development Series II Test mission Launch Vehicle: Thor DM-18. Thor DM-18 113 Apogee: 520 km (320 mi). A Thor missile, the eighth tested and the fourth successfully, completed the first fully-guided Thor IRBM flight using an all-inertial guidance system.

• 1958 January 28 - Research and development Series II Test mission Launch Vehicle: Thor DM-18. Failure. Thor DM-18 114 Thor IRBM successfully fired from Cape Canaveral, flew prescribed course, and impacted in preselected area.

• 1958 February 28 - Research and development Series II Test mission Launch Vehicle: Thor DM-18. Failure. Thor DM-18 120 Copper heatsink nose cone

• 1958 April 19 - Research and development Series II Test mission Launch Vehicle: Thor DM-18. Failure. Thor DM-18 121

• 1958 April 23 - Able RTV re-entry vehicle test flight Launch Vehicle: Thor Able. Thor turbopump gearbox failed T+150 sec.. Thor Able 116 Mouse 'Mia' not recovered.

• 1958 June 13 - Research and development Series III Test mission Launch Vehicle: Thor DM-18. Thor DM-18 122 Apogee: 520 km (320 mi).

• 1958 July 10 02:30 - Able RTV re-entry vehicle test flight Launch Vehicle: Thor Able. Thor Able 118 Apogee: 1,600 km (900 mi). Range: 9,600 km (5,900 mi). Mouse 'Mia II' reached 1600 km altitude, flew 9600 km range, but re-entry vehicle not recovered.

• 1958 July 13 - Research and development Series III Test mission Launch Vehicle: Thor DM-18. Thor DM-18 123 Apogee: 520 km (320 mi).

• 1958 July 23 - Able RTV re-entry vehicle test flight Launch Vehicle: Thor Able. Thor Able 119 Apogee: 1,600 km (900 mi). Mouse 'Wickie' not recovered; nose cone lost.

• 1958 July 26 - Research and development Series III Test mission Launch Vehicle: Thor DM-18. Failure. Thor DM-18 126

• 1958 August 17 12:18 - Pioneer (1) Launch Vehicle: Thor Able. Thor exploded after 77 sec.. Thor Able I 127 Apogee: 16 km (9 mi). First US lunar attempt. The first US Air Force lunar probe, using a Thor-Able booster. An explosion ripped it apart 77 seconds after launch.

• 1958 October 11 08:42 - Pioneer 1 Launch Vehicle: Thor Able. Third stage produced insufficient thrust. Partial Failure.. Thor Able I 130 Set distance record; failed to reach moon.

• 1958 November 5 - Series IV research and development launch Launch Vehicle: Thor DM-18. Thor DM-18A 138 Apogee: 520 km (320 mi).

• 1958 November 8 07:30 - Pioneer 2 Launch Vehicle: Thor Able. Third stage ignition unsuccessful.. Thor Able I 129 Apogee: 1,550 km (960 mi). Pioneer 2 was launched from the Atlantic Missile Range, using a Thor-Able booster, the Air Force acting as executive agent to NASA. The 86.3-pound instrumented payload, intended as a lunar probe, failed to reach escape velocity.

• 1958 November 26 - Series IV research and development launch Launch Vehicle: Thor DM-18. Thor DM-18A 140 Apogee: 520 km (320 mi). First operational launch

• 1958 December 16 - Series IV research and development launch Launch Vehicle: Thor DM-18. Thor DM-18A 146 Apogee: 520 km (320 mi).

• 1959 January 23 - RVX-1 Re-entry Vehicle Test mission Launch Vehicle: Thor Able. First stage shut down at wrong time. Partial failure.. Thor Able II 128

• 1959 January 30 - Series IV research and development launch Launch Vehicle: Thor DM-18. Thor DM-18A 154 Apogee: 520 km (320 mi).

• 1959 February 28 - RVX-1 Re-entry Vehicle Test mission Launch Vehicle: Thor Able. Thor Able II 131 Apogee: 520 km (320 mi).

• 1959 March 21 - RVX-1 Re-entry Vehicle Test mission Launch Vehicle: Thor Able. Thor Able II 132 Apogee: 520 km (320 mi).

• 1959 March 26 - Series IV research and development launch Launch Vehicle: Thor DM-18. Thor DM-18A 162 Apogee: 520 km (320 mi).

• 1959 April 8 - RVX-1 Re-entry Vehicle Test mission Launch Vehicle: Thor Able. Thor Able II 133 Apogee: 520 km (320 mi).

• 1959 April 23 - Series IV research and development launch Launch Vehicle: Thor DM-18. Thor DM-18A 176 Apogee: 520 km (320 mi). Fourth recovery of a data capsule at AMR, USAF Thor 1,500-mile accuracy test flight.

• 1959 May 12 - Series IV research and development launch Launch Vehicle: Thor DM-18. Thor DM-18A 187 Apogee: 520 km (320 mi).

• 1959 May 21 - RVX-1 Re-entry Vehicle Test mission Launch Vehicle: Thor Able. Thor Able II 135 Apogee: 520 km (320 mi).

• 1959 June 11 - RVX-1 Re-entry Vehicle Test mission Launch Vehicle: Thor Able. Thor Able II 137 Apogee: 520 km (320 mi).

• 1959 June 29 - Series IV Lofted Trajectory research and development mission Launch Vehicle: Thor DM-18. Thor DM-18A 194 Apogee: 1,000 km (600 mi).

• 1959 July 21 - Series IV research and development launch Launch Vehicle: Thor DM-18. Failure. Thor DM-18A 203

• 1959 August 5 - Series IV research and development launch Launch Vehicle: Thor DM-18. Thor DM-18A 208 Apogee: 520 km (320 mi).

• 1959 August 7 14:24 - Explorer 6 Launch Vehicle: Thor Able. Thor Able III 134 Apogee: 42,400 km (26,300 mi). First Earth photo; radiation data.

• 1959 August 27 - Series IV research and development launch Launch Vehicle: Thor DM-18. Thor DM-18A 216 Apogee: 520 km (320 mi).

• 1959 September 17 - Transit 1A Launch Vehicle: Thor Able. Third stage failed.. Thor Able II 136 First Transit test satellite; failed to reach orbit.

• 1959 September 22 18:00 - Series IV research and development launch/Ionosphere/Meteorites mission Launch Vehicle: Thor DM-18. Thor DM-18A 222 Apogee: 520 km (320 mi).

• 1959 October 13 - Series IV research and development launch Launch Vehicle: Thor DM-18. Thor DM-18A 221 Apogee: 520 km (320 mi).

• 1959 November 3 - Series IV research and development launch/Meteorites mission Launch Vehicle: Thor DM-18. Thor DM-18A 238 Apogee: 520 km (320 mi).

• 1959 November 19 - Series IV research and development launch Launch Vehicle: Thor DM-18. Thor DM-18A 244 Apogee: 520 km (320 mi).

• 1959 December 17 - Series IV research and development launch/Meteorites mission Launch Vehicle: Thor DM-18. Thor DM-18A 255 Apogee: 520 km (320 mi).

• 1960 March 11 13:00 - Pioneer 5 Launch Vehicle: Thor Able. Thor Able IV 219 Solar research. Solar Orbit (Heliocentric). Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1960 April 1 11:40 - Tiros 1 Launch Vehicle: Thor Able. Thor Able II 148 Apogee: 696 km (432 mi). TV and Infrared Observation Satellite; returned 22952 cloud cover photos. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

• 1960 April 13 12:02 - Transit 1B Launch Vehicle: Thor Able-Star. Thor Ablestar 257 AB002? Apogee: 644 km (400 mi). The Able-Star second stage demonstrated the first engine restart in space and the feasibility of using satellites as navigational aids. The first experimental Transit satellite to achieve orbit operated for 89 days. It transmitted on two frequency pairs to test the technique for refraction correction and to determine if the transmitted frequencies should be close together or far apart. It also tested a magnetic torque device for spacecraft attitude control - the first satellite to do so.

• 1960 May 13 09:16 - Echo 1 Launch Vehicle: Delta. Second stage attitude control failure.. Thor Delta 144/D1

• 1960 June 22 05:54 - Transit 2A Launch Vehicle: Thor Able-Star. Thor Ablestar 281 AB003? Apogee: 988 km (613 mi). Also returned geodetic data. Similar to Transit 1B, it transmitted until 26 October 1962. A planned Transit 2B was considered redundant and never built.

• 1960 August 12 09:39 - Echo 1 Launch Vehicle: Delta. Thor Delta 270/D2 Apogee: 2,157 km (1,340 mi). Balloon; passively relayed TV and voice transmissions. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

• 1960 August 18 19:58 - Courier 1A Launch Vehicle: Thor Able-Star. Exploded 2.5 minutes after launch.. Thor Ablestar 262 AB004? Experimental communications sattelite.

• 1960 October 4 17:50 - Courier 1B Launch Vehicle: Thor Able-Star. Thor Ablestar 293 AB005 Apogee: 1,214 km (754 mi). Experimental communications. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

• 1960 November 23 11:13 - Tiros 2 Launch Vehicle: Delta. Thor Delta 245/D3 Apogee: 610 km (370 mi). Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

• 1960 November 30 19:50 - Transit 3A Launch Vehicle: Thor Able-Star. Failure. Thor Ablestar 283 AB006 Destroyed by range safety; launched with Solrad 2. Thor shut down too early.

• 1961 February 22 03:45 - Transit 3B Launch Vehicle: Thor Able-Star. Thor Ablestar 313 AB007 Lofti 1 piggyback payload did not separate. Nevertheless Transit 3B returned useful data needed for design of the operational satellites. It carried a digital clock driven by the same oscillator that drove the transmitters. It transmitted timing signals governed by the clock and a 384-bit memory. This allowed testing of the techniques for loading the memory from the ground, the ability of the memory to hold a message in orbit, and the ability to encode the memory contents by means of a frequency modulation on one of the main transmitters. It was also shown that ±60° phase modulation could be used to transmit the contents of the satellite memory without degradation of the accuracy of the Doppler signal and Doppler measurements.

• 1961 March 25 15:17 - Explorer 10 Launch Vehicle: Delta. Thor Delta 295/D4 Apogee: 181,100 km (112,500 mi). Magnetic field data. Decay date suspect Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1961 June 29 04:22 - Transit 4A Launch Vehicle: Thor Able-Star. Thor Ablestar 315 AB008 Apogee: 986 km (612 mi). Transits 4A and 4B were drum-shaped instead of spherical to provide more space for solar cells. In addition, operational 150-and 400-MHz frequencies were used for the first time. Carried SNAP-3A nuclear power source.

• 1961 July 12 10:25 - Tiros 3 Launch Vehicle: Delta. Thor Delta 286/D5 Apogee: 790 km (490 mi). Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

• 1961 August 16 03:21 - Explorer 12 Launch Vehicle: Delta. Thor Delta 312/D6 Apogee: 76,620 km (47,600 mi). Radiation and solar wind data. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1961 November 15 22:19 - Transit 4B Launch Vehicle: Thor Able-Star. Thor Ablestar 305 AB009? Apogee: 1,104 km (685 mi). Together, Transits 4A and 4B allowed the determination of harmonics in the Earth’s gravity field that had not yet been evaluated, and they also allowed firm navigational ties to be established from continent to continent as well as to isolated islands. As a result, it was discovered that the position of Hawaii was incorrect by 1 km. Carried SNAP 3 nuclear power source.

• 1962 January 15 11:07 - AVT-1 Satellite test mission Launch Vehicle: Thor DSV-2D. Thor DSV-2D 337 Apogee: 1,400 km (800 mi).

• 1962 January 24 09:30 - Lofti 2 Launch Vehicle: Thor Able-Star. Failure. Thor Ablestar 311 AB010 Carried 5 satellites.

• 1962 February 8 12:43 - Tiros 4 Launch Vehicle: Delta. Thor Delta 317/D7 Apogee: 812 km (504 mi). Returned 32593 cloud cover photos. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

• 1962 March 7 16:06 - OSO 1 Launch Vehicle: Delta. Thor Delta 301/D8 Apogee: 553 km (343 mi). Orbiting Solar Observatory; solar flare observations. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1962 April 26 18:00 - Ariel 1 Launch Vehicle: Delta. Thor Delta 320/D9 Apogee: 1,203 km (747 mi). Ionospheric studies; returned X-ray, ionospheric, cosmic ray data. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1962 May 10 12:07 - Anna 1A Launch Vehicle: Thor Able-Star. Able-Star failed to ignite.. Thor Ablestar 314 AB011 USN, USAF, US Army, NASA joint program.

• 1962 June 19 12:19 - Tiros 5 Launch Vehicle: Delta. Thor Delta 321/D10 Apogee: 880 km (540 mi). Returned 58226 cloud cover images. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

• 1962 July 10 08:35 - Telstar 1 Launch Vehicle: Delta. Thor Delta 316/D11 Apogee: 5,643 km (3,506 mi). First commercial comsat; active repeater. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

• 1962 July 18 09:30 - AVT 2 Satellite test mission Launch Vehicle: Thor DSV-2D. Thor DSV-2D 338 Apogee: 1,484 km (922 mi).

• 1962 September 18 08:53 - Tiros 6 Launch Vehicle: Delta. Thor Delta 318/D12 Apogee: 654 km (406 mi). Returned 66674 cloud cover images. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

• 1962 October 2 22:11 - Explorer 14 Launch Vehicle: Delta A. Thor Delta A 345/D13 Apogee: 96,229 km (59,793 mi). Magnetosphere studies. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1962 October 27 23:15 - Explorer 15 Launch Vehicle: Delta A. Thor Delta A 346/D14 Apogee: 17,610 km (10,940 mi). Radiation decay data. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1962 October 31 08:03 - Anna 1B Launch Vehicle: Thor Able-Star. Thor Ablestar 319 AB012 Apogee: 1,181 km (733 mi). Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1962 December 13 23:30 - Relay 1 Launch Vehicle: Delta B. Thor Delta B 355/D15 Apogee: 7,440 km (4,620 mi). Communications satellite technology tests. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

• 1963 February 14 05:35 - Syncom I; Syncom 1 Launch Vehicle: Delta B. Thor Delta B 358/D16 Apogee: 36,739 km (22,828 mi). Experimental commsat; lost contact following orbital injection. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Four score. Last known longitude (10 March 1987) 172.58 deg E drifting at 2.429 deg E per day.

• 1963 April 3 02:00 - Explorer 17 Launch Vehicle: Delta B. Thor Delta B 357/D17 Apogee: 891 km (553 mi). Atmospheric research. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1963 May 7 11:38 - Telstar 2 Launch Vehicle: Delta B. Thor Delta B 366/D18 Apogee: 10,802 km (6,712 mi). Active repeater. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

• 1963 June 19 09:50 - Tiros 7 Launch Vehicle: Delta B. Thor Delta B 359/D19 Apogee: 349 km (216 mi). Returned over 150000 cloud cover images. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

• 1963 July 26 14:33 - Syncom 2 Launch Vehicle: Delta B. Thor Delta B 370/D20 Apogee: 35,891 km (22,301 mi). Experimental commsat; 1st geosynchronous satellite. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit at 55 deg W in 1963; 26 deg W in 1965. Last known longitude (19 July 1995) 68.47 deg E drifting at 0.089 deg W per day.

• 1963 September 18 09:40 - ASSET 1 re-entry vehicle test flight Launch Vehicle: Thor DSV-2F. Thor DSV-2F 232 Apogee: 62 km (38 mi). Suborbital test of small scale spaceplane model to test materials for the X-20 Dynasoar. Aero-thermodynamic structural test vehicle (ASV) for heat shield tests. Booster flew to peak altitude of 62 km, then pitched down, driving the spacecraft to separation at 59 km and 4,906 m/s. The spacecraft was sited under its parachute in the recovery zone at Ascension Island, but the flotation bag broke and it sank into the Atlantic.

• 1963 November 27 02:30 - Explorer 18 Launch Vehicle: Delta C. Thor Delta C 387/D21 Apogee: 197,616 km (122,792 mi). Radiation data; Interplanetary Monitoring Program. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1963 December 21 09:30 - Tiros 8 Launch Vehicle: Delta B. Thor Delta B 371/D22 Apogee: 705 km (438 mi). Returned more than 100,000 cloud cover images. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

• 1964 January 21 21:14 - Relay 2 Launch Vehicle: Delta B. Thor Delta B 373/D23 Apogee: 7,540 km (4,680 mi). Experimental commsat. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

• 1964 March 19 11:13 - Explorer (20) Launch Vehicle: Delta B. Insufficient third stage thrust.. Thor Delta B 391/D24 Also known as Explorer S-66.

• 1964 March 24 12:15 - ASSET 2 re-entry vehicle test flight Launch Vehicle: Thor DSV-2G. Second stage fired, then shut down, repeating the sequence several times.. Thor DSV-2G 240 Apogee: 55 km (34 mi). Range: 800 km (490 mi). Suborbital test of small scale spaceplane model to test materials for the X-20 Dynasoar. Aero-thermodynamic structural test vehicle (ASV) for heat shield tests. Good first stage burn, but the second stage fired, then shut down, repeating the sequence several times. The spacecraft separated, and began to maneuver in a 60 degree bank to recover course, when the self-destruct package blew it apart. The debris impacted the Atlantic 800 km downrange near San Salvador Island.

• 1964 July 22 15:39 - ASSET 3 re-entry vehicle test flight Launch Vehicle: Thor DSV-2G. Thor DSV-2G 250 Apogee: 71 km (44 mi). Suborbital test of small scale spaceplane model to test materials for the X-20 Dynasoar. Aero-thermodynamic structural test vehicle (ASV) for heat shield tests. Launched after four hours of holds. Tested Dynasoar hardware - tungsten nose cap, molbdenum panels with vapor-deposited disilicide, and liquid-cooled double-walled cockpit bathtub panel. Reached 5,500 m/s and recovered near Ascension Island 12 hours after launch.

• 1964 August 19 12:15 - Syncom 3 Launch Vehicle: Delta D. Thor Delta D 417/D25 Apogee: 35,792 km (22,240 mi). Experimental commsat; carried Star Flash experiment. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit at 64 deg W in 1964; 180 deg E in 1964; 25 deg W in 1965; 165 deg E in 1966-1969. Last known longitude (6 December 1974) 6.08 deg W drifting at 0.188 deg W per day.

• 1964 October 4 03:45 - Explorer 21 Launch Vehicle: Delta C. Thor Delta C 392/D26 Apogee: 95,590 km (59,390 mi). Lower than planned orbit. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1964 October 28 - ASSET 4 re-entry vehicle test flight Launch Vehicle: Thor DSV-2F. Thor DSV-2F 260 Apogee: 50 km (31 mi). Range: 1,200 km (700 mi). Suborbital test of small scale spaceplane model to test structural concepts for the X-20 Dynasoar. Aero-environmental test vehicle (AEV) to test aerodynamic properties of flexing outer skin with corrugated columbium panel. Reached 4,000 m/s at 50.6 km altitude before being released from launch vehicle. Telemetry received for 900 seconds until spaceplane had reached Mach 2 1200 km downrange. It then became unstable and crashed into the Atlantic. Recovery was not planned.

• 1964 December 9 02:00 - ASSET 5 re-entry vehicle test flight Launch Vehicle: Thor DSV-2F. Thor DSV-2F 247 Apogee: 53 km (32 mi). Range: 1,200 km (700 mi). Suborbital test of small scale spaceplane model to test structural concepts for the X-20 Dynasoar. Aero-environmental test vehicle (AEV) to test aerodynamic properties of flexing outer skin with corrugated columbium panel. Reached 4,000 m/s at 53.2 km altitude before being released from launch vehicle. Telemetry received for 900 seconds until spaceplane had reached Mach 2 1200 km downrange. It then became unstable and crashed into the Atlantic. Recovery was not planned.

• 1964 December 21 09:00 - Explorer 26 Launch Vehicle: Delta C. Thor Delta C 393/D27 Apogee: 10,043 km (6,240 mi). Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1965 January 22 07:52 - Tiros 9 Launch Vehicle: Delta C. Thor Delta C 374/D28 Apogee: 2,563 km (1,592 mi). Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

• 1965 February 3 16:36 - OSO 2 Launch Vehicle: Delta C. Thor Delta C 411/D29 Apogee: 306 km (190 mi). Orbiting Solar Observatory; returned solar X-ray, UV, gamma ray data. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1965 February 23 14:36 - ASSET 6 re-entry vehicle test flight Launch Vehicle: Thor DSV-2G. Thor DSV-2G 248 Apogee: 70 km (43 mi). Range: 4,350 km (2,700 mi). Suborbital test of small scale spaceplane model to test materials for the X-20 Dynasoar. Reached 6,000 m/s and 4,350 km range. Tested twelve different kinds of refractory metals and covered with 2000 dots of heat-sensitive paint to characterize thermal profile on reentry. Telemetry indicated that the spacecraft survived reentry, but it evidently sank upon impacting the ocean and could not be recovered as planned.

• 1965 April 6 23:47 - Intelsat 1 F-1 Launch Vehicle: Delta D. Thor Delta D 426/D30 Apogee: 35,819 km (22,256 mi). Over Atlantic. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit at 28 deg W in 1965; 38 deg W in 1965-1966. As of 27 July 2001 located at 92.54 deg W drifting at 0.324 deg W per day. As of 2007 Jan 13 located at 47.74W drifting at 0.017E degrees per day.

• 1965 May 29 12:00 - Explorer 28 Launch Vehicle: Delta C. Thor Delta C 441/D31 Apogee: 261,206 km (162,305 mi). Magnetic field, radiation data. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1965 July 2 04:07 - Tiros 10 Launch Vehicle: Delta C. Thor Delta C 415/D32 Apogee: 807 km (501 mi). Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

• 1965 August 25 15:17 - OSO C Launch Vehicle: Delta C. Premature third stage ignition.. Thor Delta C 434/D33

• 1965 November 6 18:38 - Explorer 29 Launch Vehicle: Delta E. Thor Delta E 457/D34 Apogee: 2,269 km (1,409 mi). The primary objective of GEOS-A was to provide global geodetic measurements for determining the positions of fiducial control points on the Earth to an accuracy of 10 meters in an Earth centre of mass co-ordinate system, and to determine the structure of the Earth's gravity field to 5 parts in 10 million. Instrumentation included (1) four optical beacons, (2) laser reflectors, (3) a radio range transponder, (4) Doppler beacons, and (5) a range and range rate transponder. These were designed to operate simultaneously to fulfil the objectives of locating observation points (geodetic control stations) in a three dimensional earth centre-of-mass co-ordinate system within 10 m of accuracy, of defining the structure of the earth's irregular gravitational field and refining the locations and magnitudes of the large gravity anomalies, and of comparing results of the various systems onboard the spacecraft to determine the most accurate and reliable system. In January 1967, a failure in the satellite's command system rendered several geodetic systems inoperable. Radio doppler measurements and the passive laser reflector experiment could continue indefinitely, however.

• 1965 December 16 07:31 - Pioneer 6 Launch Vehicle: Delta E. Thor Delta E 460/D35 Measured solar wind, Sun's magnetic field. Solar Orbit (Heliocentric). Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1966 February 3 07:41 - ESSA 1 Launch Vehicle: Delta C. Thor Delta C 445/D36 Apogee: 806 km (500 mi). Environmental Survey Satellite. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

• 1966 February 28 13:58 - ESSA 2 Launch Vehicle: Delta E. Thor Delta E 461/D37 Apogee: 1,415 km (879 mi). Environmental Survey Satellite; carried APT cameras. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

• 1966 May 25 14:00 - Explorer 32 Launch Vehicle: Delta C. Thor Delta C1 436/D38 Apogee: 2,723 km (1,691 mi). Atmospheric Explorer; aeronomy experiments. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1966 July 1 16:02 - Explorer 33 Launch Vehicle: Delta E. Thor Delta E1 467/D39 Apogee: 480,762 km (298,731 mi). Intended to enter lunar orbit. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1966 August 17 15:20 - Pioneer 7 Launch Vehicle: Delta E. Thor Delta E1 462/D40 Apogee: 993 km (617 mi). Monitored solar wind, cosmic rays. SOLAR ORB. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1966 October 26 23:05 - Intelsat 2 F-1 Launch Vehicle: Delta E. Partial Failure.. Thor Delta E1 464/D42 Apogee: 37,070 km (23,030 mi). Unusable orbit due to AKM failure. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

• 1966 December 14 19:20 - Biosatellite 1 Launch Vehicle: Delta G. Thor Delta G 471/D43 Apogee: 309 km (192 mi). Reentry into the Earth's atmosphere was not achieved because the retrorocket failed to ignite. The biosatellite was never recovered. Although the scientific objectives of the mission were not accomplished, the Biosatellite I experience provided technical confidence in the program because of excellent performance in most other areas.

• 1967 January 11 10:55 - Intelsat 2 F-2 Launch Vehicle: Delta E. Thor Delta E1 468/D44 Apogee: 35,808 km (22,250 mi). Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit over the Pacific Ocean at 174 deg E in 1967-1969; over the Pacific Ocean 162-170 deg E in 1969-1970; over the Pacific Ocean 150-160 deg E in 1970-1975 As of 7 August 2001 located at 48.66 deg E drifting at 0.413 deg W per day. As of 2007 Mar 8 located at 63.48W drifting at 0.357W degrees per day.

• 1967 March 8 16:12 - OSO 3 Launch Vehicle: Delta C. Thor Delta C 431/D46 Apogee: 570 km (350 mi). Orbiting Solar Observatory. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1967 March 23 01:30 - Intelsat 2 F-3 Launch Vehicle: Delta E. Thor Delta E1 470/D47 Apogee: 35,899 km (22,306 mi). Positioned in geosynchronous orbit over the Atlantic Ocean at 15 deg W in 1967-1971; over the Atlantic Ocean at 35 deg W in 1972; over the Atlantic Ocean at 15 deg W in 1973. As of 22 August 2001 was at 6.75 deg W drifting at 0.037 deg W per day. As of 2005 Dec 5 located at 13.34E drifting at 0.188W degrees per day. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

• 1967 July 19 14:19 - Explorer 35 Launch Vehicle: Delta E. Thor Delta E1 488/D50 Apogee: 675 km (419 mi). Earth magnetic tail measurements. Lunar Orbit (Selenocentric). The Westinghouse Aerospace Division, under contract to National Aeronautics and Space Administration's Goddard Space Flight Center, engaged in the system design, integration, assembly and launch support for Anchored Interplanetary Monitoring Platform Satellite, officially designated Explorer 35 by the National Aeronautics and Space Administration. It was launched on July 19, 1967, with the primary objectives of investigation of interplanetary plasma and the interplanetary magnetic field out to and at the lunar distance, in either a captured lunar orbit or a geocentric orbit of the earth. In the geocentric orbit, the apogee was near or beyond the lunar distance. In a lunar orbit, additional objectives included obtaining data on dust distribution, lunar gravitational field, ionosphere, magnetic field, and radiation environment around the moon. AIMP-E also studied spatial and temporal relationships of geophysical and interplanetary phenomena simultaneously being studied by several other National Aeronautics and Space Administration satellites. The investigation in the vicinity of the moon provided for measurements of the characteristics of the interplanetary dust distribution, solar and galactic cosmic rays, as well as a study of the magnetohydrodynamic wake of the earth in the interplanetary medium at the lunar distances.

• 1967 September 7 22:04 - Biosatellite 2 Launch Vehicle: Delta G. Thor Delta G 475/D51 Apogee: 318 km (197 mi). Biological capsule recovered. The scientific payload, consisting of 13 select biology and radiation experiments, was exposed to microgravity during 45 hours of Earth-orbital flight. Experimental biology packages on the spacecraft contained a variety of specimens, including insects, frog eggs, microorganisms and plants. The planned three-day mission was recalled early because of the threat of a tropical storm in the recovery area, and because of a communication problem between the spacecraft and the tracking systems. The primary objective of the Biosatellite II mission was to determine if organisms were more, or less, sensitive to ionizing radiation in microgravity than on Earth. To study this question, an artificial source of radiation was supplied to a group of experiments mounted in the forward part of the spacecraft.

• 1967 September 28 00:45 - Intelsat 2 F-4 Launch Vehicle: Delta E. Thor Delta E1 442/D52 Apogee: 35,885 km (22,297 mi). Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit over the Pacific Ocean at 176 deg E in 1967-1970; over the Pacific Ocean 166 deg W in 1971; over the Atlantic Ocean 30-42 deg W in 1972 As of 1 August 2001 located at 36.36 deg W drifting at 0.096 deg E per day. As of 2007 Mar 7 located at 168.68W drifting at 0.093W degrees per day.

• 1967 October 18 15:58 - OSO 4 Launch Vehicle: Delta C. Thor Delta C1 490/D53 Apogee: 555 km (344 mi). Extreme UV solar observations. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1967 December 13 14:08 - Pioneer 8 Launch Vehicle: Delta E. Thor Delta E1 489/D55 Solar radiation data. Solar Orbit (Heliocentric). Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1968 September 19 00:09 - Intelsat-3 F-1 Launch Vehicle: Delta M. Control system failure; destroyed by range safety.. Thor Delta M 529/D59

• 1968 November 8 09:46 - Pioneer 9 Launch Vehicle: Delta E. Thor Delta E1 479/D60 Solar radiation data. Solar Orbit (Heliocentric). Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1968 December 5 18:55 - HEOS 1 Launch Vehicle: Delta E. Thor Delta E1 481/D61 Apogee: 202,780 km (126,000 mi). Highly Eccentric Orbiting Satellite; examined magnetic fields outside of Earth's magnetosphere. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1968 December 19 00:32 - Intelsat 3 F-2 Launch Vehicle: Delta M. Thor Delta M 536/D63 Apogee: 37,111 km (23,059 mi). Over Brazil. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit over the Atlantic Ocean at 24 deg W in 1969-1970. As of 3 September 2001 located at 96.04 deg E drifting at 9.557 deg W per day. As of 2007 Mar 9 located at 48.04W drifting at 9.553W degrees per day.

• 1969 January 22 16:48 - OSO 5 Launch Vehicle: Delta C. Thor Delta C1 487/D64 Apogee: 559 km (347 mi). Orbiting Solar Observatory; solar radiation data. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1969 February 6 00:39 - Intelsat 3 F-3 Launch Vehicle: Delta M. Thor Delta M 530/D66 Apogee: 35,803 km (22,246 mi). Stationed at 63 deg E. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit over the Pacific Ocean at 174 deg E in 1969; over the Indian Ocean 062 deg E in 1969-1975. Last known longitude (24 May 1979) 66.72 deg E drifting at 0.017 deg E per day.

• 1969 February 26 07:47 - ESSA 9 Launch Vehicle: Delta E. Thor Delta E1 483/D67 Apogee: 1,505 km (935 mi). Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

• 1969 May 22 02:00 - Intelsat 3 F-4 Launch Vehicle: Delta M. Thor Delta M 533/D68 Apogee: 39,752 km (24,700 mi). Positioned in geosynchronous orbit over the Pacific Ocean at 175 deg E in 1969-1972; ? 1972-1977; over the Pacific Ocean 166 deg W in 1977. Last known longitude (20 May 1977) 161.73 deg E drifting at 44.175 deg W per day.Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

• 1969 June 29 03:15 - Biosatellite 3 Launch Vehicle: Delta N. Thor Delta N 539/D70 Apogee: 374 km (232 mi). Biological capsule reentered 7/7/69. The intent had been to fly a 6 kg male pig-tailed monkey (Macaca nemestrina) named Bonnie in Earth-orbit for 30 days. However, after only 8.8 days in orbit, the mission was terminated because of the subject's deteriorating health. High development costs were a strong incentive for maximising the scientific return from the mission. Because of this, the scientific goals had become exceedingly ambitious over time, and a great many measurements were conducted on the single research subject flown. Although the mission was highly successful from a technical standpoint, the science results were apparently compromised.

• 1969 July 26 02:06 - Intelsat 3 F-5 Launch Vehicle: Delta M. Third stage failure; left in unusable orbit.. Thor Delta M 547/D71 Apogee: 433 km (269 mi). Third stage failure; left in unusable orbit. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

• 1969 August 9 07:52 - OSO 6 Launch Vehicle: Delta N. Thor Delta N 548/D72 Apogee: 554 km (344 mi). Orbiting Solar Observatory; solar physics experiments. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1969 August 27 21:59 - Pioneer E Launch Vehicle: Delta L. First stage hydraulics failure. Vehicle destructed at T+383 seconds. Thor Delta L 540/D73

• 1969 November 22 00:37 - Skynet 1A Launch Vehicle: Delta M. Thor Delta M 554/D74 Apogee: 35,894 km (22,303 mi). Over Indian Ocean. Military communications. Previously registered by the United States in A/AC.105/INF.220: 1969-101A, orbital data 276 x 36716 km x 28.0 deg, category C. Positioned in geosynchronous orbit over the Indian Ocean at 41 deg E in 1969-1972?; ??? 1972-1977; over the Americas at 100-110 deg W in 1977-1998 As of 26 August 2001 located at 104.51 deg W drifting at 0.015 deg W per day. As of 2007 Mar 9 located at 106.94W drifting at 0.015W degrees per day.

• 1970 January 15 00:16 - Intelsat 3 F-6 Launch Vehicle: Delta M. Thor Delta M 557/D75 Apogee: 36,126 km (22,447 mi). Stationed at 336 deg E. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit over the Atlantic Ocean at 25 deg W in 1970; over the Atlantic Ocean 30 deg W in 1970-1971; over the Atlantic Ocean 20 deg W in 1971 Apr-1972 Mar; over the Indian Ocean 64 deg E in 1972-1974; over the Pacific Ocean 177 deg W in 1975 As of 5 September 2001 located at 163.49 deg E drifting at 4.024 deg W per day. As of 2007 Feb 27 located at 47.49E drifting at 4.027W degrees per day.

• 1970 March 20 23:52 - NATO 1 Launch Vehicle: Delta M. Thor Delta M 558/D77 Apogee: 35,801 km (22,245 mi). Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit over the Atlantic Ocean at 18 deg W in 1970-1972; over the Americas at 100-110 deg W in 1977-1998 As of 3 September 2001 located at 101.97 deg W drifting at 0.023 deg E per day. As of 2007 Mar 9 located at 100.55W drifting at 0.016W degrees per day.

• 1970 April 23 00:46 - Intelsat 3 F-7 Launch Vehicle: Delta M. Thor Delta M 559/D78 Apogee: 35,791 km (22,239 mi). Stationed at 341 deg E. Positioned in geosynchronous orbit over the Atlantic Ocean at 19 deg W in 1970-1971 Last known longitude (1 January 1972) L 139.45 deg E drifting at 0.022 deg E per day. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

• 1970 July 23 23:23 - Intelsat 3 F-8 Launch Vehicle: Delta M. Thor Delta M 563/D79 Apogee: 36,599 km (22,741 mi). Unusable orbit. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). As of 28 August 2001 located at 175.58 deg E drifting at 7.155 deg E per day. As of 2007 Mar 9 located at 110.93W drifting at 7.169E degrees per day.

• 1970 August 19 12:11 - Skynet 1B Launch Vehicle: Delta M. Thor Delta M 561/D80 Apogee: 37,460 km (23,270 mi). AKM failure left in unusable orbit. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

• 1971 February 3 01:41 - NATO 2 Launch Vehicle: Delta M. Thor Delta M 560/D82 Apogee: 35,802 km (22,246 mi). Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit over the Atlantic Ocean at 26 deg W in 1971-1975?; over the Americas at 105 deg W in 1976-1983; over the Americas at 110 deg W in 1983; over the Americas at 105 deg W in 1983-1998 As of 5 September 2001 located at 104.88 deg W drifting at 0.004 deg W per day. As of 2007 Mar 9 located at 105.24W drifting at 0.007W degrees per day.

• 1971 March 13 16:15 - Explorer 43 Launch Vehicle: Delta M. Thor Delta M6 562/D83 Apogee: 203,130 km (126,210 mi). Earth magnetosphere research. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1971 September 29 09:45 - OSO 7 Launch Vehicle: Delta N. Thor Delta N 565/D85 Apogee: 572 km (355 mi). Orbiting Solar Observatory. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1972 September 23 01:20 - Explorer 47 Launch Vehicle: Delta 1000. Delta 1604 579/D90 Apogee: 235,600 km (146,300 mi). Investigated cislunar radiation, Earth's magnetosphere, interplantary magnetic field. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

• 1972 November 10 01:14 - Anik A1 Launch Vehicle: Delta 1000. Delta 1914 580/D92 Apogee: 36,247 km (22,522 mi). Anik I and Anik II also registered as United States objects. .The satellites, act as space repeaters capable of receiving transmissions from earth stations and retransmitting them to other earth stations in Canada. The antenna coverage of the satellite pr ovides the capability of serving virtually all of Canada. Anik I and II had weights of 1240.59 lb and 1246.48 lb. Each satellite has 12 RF channels each capable of transmitting a color television signal or up to 900 one-way voice channels. Positioned in geosynchronous orbit over the Americas at 114 deg W in 1973-1976; over the Americas at 104 deg W in 1976-1982 As of 1 September 2001 located at 66.14 deg W drifting at 5.205 deg W per day. As of 2007 Mar 9 located at 107.03W drifting at 5.211W degrees per day.

• 1973 April 20 23:47 - Anik A2 Launch Vehicle: Delta 1000. Delta 1914 583/D94 Apogee: 35,952 km (22,339 mi). Anik I and Anik II also registered as United States objects. .The satellites, act as space repeaters capable of receiving transmissions from earth stations and retransmitting them to other earth stations in Canada. The antenna coverage of the satellite pr ovides the capability of serving virtually all of Canada. Anik I and II had weights of 1240.59 lb and 1246.48 lb. Each satellite has 12 RF channels each capable of transmitting a color television signal or up to 900 one-way voice channels. Positioned in geosynchronous orbit over the Americas at 109 deg W in 1973-1979; over the Americas at 106 deg W in 1979-1981; over the Americas at 114 deg W in 1981-1982 As of 26 August 2001 located at 0.59 deg E drifting at 1.690 deg W per day. As of 2007 Mar 9 located at 150.94E drifting at 1.684W degrees per day.

• 1973 June 10 14:13 - Explorer 49 Launch Vehicle: Delta 1000. Delta 1913 581/D95 Radio Astronomy Explorer; measured galactic, stellar radio noise. Lunar Orbit (Selenocentric). Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1973 October 26 02:26 - Explorer 50 Launch Vehicle: Delta 1000. Delta 1604 582/D97 Apogee: 244,361 km (151,838 mi). Solar flare and radiation monitor. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1974 January 19 01:38 - Skynet 2A Launch Vehicle: Delta 2000. Partial Failure. Failed to reach planned orbit.. Delta 2313 587/D100 Apogee: 1,803 km (1,120 mi). Partial Failure. Failed to reach planned orbit.

• 1974 April 13 23:33 - Westar 1 Launch Vehicle: Delta 2000. Delta 2914 588/D101 Apogee: 35,900 km (22,300 mi). Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit over the Americas at 99 deg W in 1974-1982; over the Americas at 100 deg W in 1982; over the Americas at 97 deg W in 1982; over the Americas at 79 deg W in 1982-1983 As of 5 September 2001 located at 85.83 deg W drifting at 1.372 deg W per day. As of 2007 Mar 10 located at 89.54E drifting at 1.381W degrees per day.

• 1974 May 17 09:31 - SMS 1 Launch Vehicle: Delta 2000. Delta 2914 590/D102 Apogee: 36,303 km (22,557 mi). Synchronous Meteorological Satellite. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit over the Atlantic Ocean at 45 deg W in 1974-1975; over the Atlantic Ocean 75 deg W in 1975; over the Americas at 105 deg W in 1976-1978; over the Americas at 91 deg W in1978; over the Atlantic Ocean 75 deg W in 1979; over the Atlantic Ocean 70 deg W in 1979; over the Pacific Ocean 132 deg W in 1980 As of 3 September 2001 located at 84.60 deg W drifting at 5.986 deg W per day. As of 2007 Mar 10 located at 116.51E drifting at 5.981W degrees per day.

• 1974 October 10 22:53 - Westar 2 Launch Vehicle: Delta 2000. Delta 2914 589/D103 Apogee: 35,910 km (22,310 mi). Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit over the Americas at 123 deg W in 1974-1982; over the Americas at 79 deg W in 1982-1986 As of 2 September 2001 located at 144.45 deg E drifting at 1.482 deg W per day. As of 2007 Mar 8 located at 6.53W drifting at 1.482W degrees per day.

• 1974 November 23 00:28 - Skynet 2B Launch Vehicle: Delta 2000. Delta 2313 591/D105 Apogee: 35,822 km (22,258 mi). Military communications. Positioned in geosynchronous orbit over the Indian Ocean at 50-55 deg E in 1975-1977; drifting As of 3 September 2001 located at 18.23 deg E drifting at 0.206 deg W per day. As of 2007 Feb 27 located at 54.93E drifting at 0.393E degrees per day.

• 1974 December 19 02:39 - Symphonie 1 Launch Vehicle: Delta 2000. Delta 2914 599/D106 Apogee: 35,893 km (22,302 mi). Experimental commsat. Jointly registered by the Federal Republic of Germany (A/AC.105/INF.305) and France (A/AC.105/INF.306). Symphonie flying model no. 1, constructed jointly by France and the Federal Republic of Germany. Description: Experimental teleco mmunications satellite. Orbit: geostationary. Positioned in geosynchronous orbit over the Atlantic Ocean at 11 deg W in 1975-1977; over the Indian Ocean 49 deg E in 1977-1983 As of 25 August 2001 located at 179.98 deg E drifting at 1.086 deg W per day. As of 2007 Mar 11 located at 72.77E drifting at 1.184W degrees per day.

• 1975 February 6 22:04 - SMS 2 Launch Vehicle: Delta 2000. Delta 2914 593/D108 Apogee: 36,060 km (22,400 mi). Synchronous Meteorological Satellite. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit over the Americas at (GOES W) 115 deg W in 1975-1976; over the Pacific Ocean (GOES W) 135 deg W in 1976-1978; over the Atlantic Ocean (GOES E) 75 deg W in 1979-1981; over the Americas at 106 deg W in 1982 As of 29 August 2001 located at 123.04 deg W drifting at 2.760 deg W per day. As of 2007 Feb 27 located at 127.44E drifting at 2.742W degrees per day.

• 1975 May 7 23:35 - Anik A3 (Telesat 3) Launch Vehicle: Delta 2000. Delta 2914 596/D110 Apogee: 35,851 km (22,276 mi). Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit over the Americas at 104 deg W in 1975-1976; over the Americas at 114 deg W in 1976-1984 As of 4 September 2001 located at 32.38 deg E drifting at 0.812 deg W per day. As of 2007 Mar 9 located at 138.81W drifting at 0.829W degrees per day.

• 1975 June 21 11:43 - OSO 8 Launch Vehicle: Delta 1000. Delta 1910 586/D112 Apogee: 553 km (343 mi). Orbiting Solar Observatory. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1975 August 27 01:41 - Symphonie 2 Launch Vehicle: Delta 2000. Delta 2914 594/D114 Apogee: 35,873 km (22,290 mi). Jointly registered by the Federal Republic of Germany (A/AC.105/INF.329) and France (A/AC.105/INF.330). Symphonie flying model no II. Experimental telecommunications satellite. Orbit: geostationary. Also registered by the United Stat es in A/AC.105/INF.331 as 1975-77A, category C, with orbit 1427.4 min, 35364 x 35870 km x 0.0 deg Positioned in geosynchronous orbit over the Atlantic Ocean at 11 deg W in 1975-1985 As of 1 September 2001 located at 164.06 deg W drifting at 1.071 deg W per day. As of 2007 Mar 8 located at 167.97E drifting at 1.046W degrees per day.

• 1975 October 16 22:40 - GOES 1 Launch Vehicle: Delta 2000. Delta 2914 597/D116 Apogee: 35,811 km (22,251 mi). Geostationary Operational Environmental Satellite. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). Positioned in geosynchronous orbit over the Atlantic Ocean at 55 deg W in 1975-1976; over the Pacific Ocean 135 deg W in 1976-1978; over the Atlantic Ocean 10 deg W in 1978; over the Indian Ocean 58 deg E in 1978-1979; over the Pacific Ocean 135 deg W in 1979-1980; over the Atlantic Ocean 93 deg W in 1980; over the Pacific Ocean 130 deg W in 1980-1985 As of 3 September 2001 located at 81.97 deg W drifting at 0.051 deg E per day. As of 2007 Mar 9 located at 81.95W drifting at 0.055W degrees per day.

• 1975 November 20 02:06 - Explorer 55 Launch Vehicle: Delta 2000. Delta 2910 604/D117 Apogee: 3,002 km (1,865 mi). Atmospheric Explorer. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1975 December 13 01:56 - Satcom 1 Launch Vehicle: Delta 3000. Delta 3914 607/D118 Apogee: 36,076 km (22,416 mi). Positioned in geosynchronous orbit over the Pacific Ocean at 135 deg W in 1976-1983; over the Americas at 119 deg W in 1983-1984; over the Pacific Ocean 139 deg W in 1984 As of 5 September 2001 located at 38.03 deg E drifting at 2.422 deg W per day. As of 2007 Mar 9 located at 137.85W drifting at 2.426W degrees per day.

• 1976 January 17 23:27 - CTS 1 Launch Vehicle: Delta 2000. Delta 2914 606/D119 Apogee: 35,840 km (22,260 mi). Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit over the Americas at 116 deg W in 1976-79; over the Pacific Ocean 142 deg W in 1979 As of 5 September 2001 located at 135.36 deg W drifting at 0.161 deg W per day. As of 2007 Mar 10 located at 131.55W drifting at 0.190W degrees per day.

• 1976 February 19 22:32 - Marisat 1 Launch Vehicle: Delta 2000. Delta 2914 603/D120 Apogee: 36,143 km (22,458 mi). Maritime communications. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit over the Atlantic Ocean at 15 deg W in 1976-1990; over the Americas at 106 deg W in 1990-1997 As of 2 September 2001 located at 168.03 deg W drifting at 3.834 deg W per day. As of 2007 Mar 10 located at 20.39E drifting at 3.837W degrees per day.

• 1976 March 26 22:47 - RCA Satcom 2 Launch Vehicle: Delta 3000. Delta 3914 610/D121 Apogee: 36,494 km (22,676 mi). Positioned in geosynchronous orbit over the Americas at 119 deg W in 1976-1984 over the Pacific Ocean 139 deg W in 1984-1985 As of 5 September 2001 located at 72.03 deg W drifting at 5.939 deg W per day. As of 2007 Mar 9 located at 127.82W drifting at 5.942W degrees per day.

• 1976 April 22 20:46 - NATO 3A Launch Vehicle: Delta 2000. Delta 2914 608/D122 Apogee: 36,017 km (22,379 mi). Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit over the Atlantic Ocean at 18 deg W in 1976-1982; over the Atlantic Ocean 30 deg W in 1982-1984; over the Atlantic Ocean 50 deg W in 1984-1985; over the Atlantic Ocean at 30 deg W in 1985-1989; over the Americas at 125 deg W in 1989-1991 As of 5 September 2001 located at 4.12 deg E drifting at 1.524 deg W per day. As of 2007 Mar 9 located at 142.00E drifting at 1.522W degrees per day.

• 1976 June 10 00:09 - Marisat 2 Launch Vehicle: Delta 2000. Delta 2914 601/D124 Apogee: 37,604 km (23,365 mi). Maritime communications. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit over the Pacific Ocean at 176 deg E in 1976-1991 over the Pacific Ocean 178 deg W in 1991-1996 As of 5 September 2001 located at 158.48 deg W drifting at 15.761 deg W per day. As of 2007 Mar 10 located at 162.62W drifting at 15.745W degrees per day.

• 1976 July 8 23:31 - Palapa 1 Launch Vehicle: Delta 2000. Delta 2914 611/D125 Apogee: 35,852 km (22,277 mi). Palapa A1 and A2 were the initial elements of Indonesia's domestic communications satellite system. The spacecraft were identical to Canada's Anik and Western Union's Westars except for a modified parabolic reflector, enlarged to give maximum illumination of the Indonesian land mass. Operational lives for Palapa A1 and A2 ended June 1985 and January 1988, respectively. Spacecraft: Based on Hughes HS-333 design.1.5 m diameter parabolic reflector with 12 transponders working through 125 Earth stations. Spin stabilised with despun antenna and feeds. Payload: Both satellites carried 12 transponders that provided 4000 voice circuits or 12 simultaneous TV channels to the country's 6000+ inhabited islands. Positioned in geosynchronous orbit over the Indian Ocean at 83 deg E in 1976-1986? As of 28 August 2001 located at 177.38 deg E drifting at 0.588 deg W per day. As of 2007 Mar 10 located at 51.89W drifting at 0.649W degrees per day.

• 1976 October 14 22:44 - Marisat 3 Launch Vehicle: Delta 2000. Delta 2914 614/D127 Apogee: 35,789 km (22,238 mi). Maritime communications. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit over the Indian Ocean at 73 deg E in 1976-on. As of 26 August 2001 located at 33.84 deg W drifting at 0.011 deg W per day. As of 2007 Mar 10 located at 34.60W drifting at 0.007W degrees per day.

• 1977 January 28 00:49 - NATO 3B Launch Vehicle: Delta 2000. Delta 2914 613/D128 Apogee: 37,421 km (23,252 mi). Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit over the Pacific Ocean at 135 deg W in 1977-1979 over the Atlantic Ocean 20 deg W in 1979-1982 over the Atlantic Ocean 18 deg W in 1983-1986 over the Atlantic Ocean60 deg W in 1987-1993 As of 5 September 2001 located at 74.61 deg W drifting at 18.018 deg W per day. As of 2007 Mar 10 located at 40.43E drifting at 18.015W degrees per day.

• 1977 March 10 23:16 - Palapa 2 Launch Vehicle: Delta 2000. Delta 2914 612/D129 Apogee: 35,867 km (22,286 mi). Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit over the Indian Ocean at 80 deg E in 1977-1986? As of 5 September 2001 located at 64.27 deg W drifting at 0.845 deg W per day. As of 2007 Mar 11 located at 69.73E drifting at 0.893W degrees per day.

• 1977 April 20 10:15 - ESA-Geos 1 Launch Vehicle: Delta 2000. Delta 2914 617/D130 Apogee: 38,214 km (23,745 mi). Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1977 June 16 10:51 - GOES 2 Launch Vehicle: Delta 2000. Delta 2914 616/D131 Apogee: 36,080 km (22,410 mi). Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit over the Atlantic Ocean at 75 deg W in 1977-1978 over the Americas at 100-110 deg W in 1979-1984 over the Americas at 112-114 deg W in 1984-1990 over the Atlantic Ocean 60 deg W in 1990-1992 over the Pacific Ocean 135 deg W in 1992-1995; over the Pacific Ocean 177 deg W in 1995-on. As of 4 September 2001 located at 147.59 deg W drifting at 3.154 deg W per day. As of 2007 Mar 8 located at 1.58W drifting at 3.141W degrees per day.

• 1977 July 14 10:39 - Himawari 1 Launch Vehicle: Delta 2000. Delta 2914 618/D132 Apogee: 36,148 km (22,461 mi). Geostationary meteorological satellite. Positioned in geosynchronous orbit over the Pacific Ocean at 140 deg E in 1977-1981; over the Pacific Ocean 160 deg E in 1981-1984; over the Pacific Ocean 140 deg E in 1984; over the Pacific Ocean160 deg E in 1984-1989 As of 29 August 2001 located at 10.47 deg W drifting at 3.675 deg W per day. As of 2007 Mar 10 located at 112.63E drifting at 3.690W degrees per day.

• 1977 August 25 23:49 - Sirio 1 Launch Vehicle: Delta 2000. Delta 2313 615/D133 Apogee: 35,869 km (22,287 mi). Experimental commsat. SIRIO (Satellite Italiano Ricerca Industriale Orientata). Launch time 2350:00 GMT. Geographical longitude of geostationary orbit 15 deg W. SIRIO is a spin stabilized geostationary experimental communications satellite. Characteristics of satellite: Weight at launch 398 kg, in orbit 218 kg. Configuration - cylindrical, height 1.981m, diameter 1.433 m, nominal life two years. Positioned in geosynchronous orbit over the Atlantic Ocean at 15 deg W in 1977-1981; over the Atlantic Ocean 25 deg W in 1981-1983; over the Indian Ocean 65 deg E in 1983-1985 As of 4 September 2001 located at 86.65 deg E drifting at 0.265 deg E per day. As of 2007 Mar 11 located at 75.38E drifting at 0.003E degrees per day.

• 1977 September 13 23:31 - OTS 1 Launch Vehicle: Delta 3000. Vehicle exploded, probably SRM case.. Delta 3914 619/D134 Orbital Test Satellite; failed to orbit.

• 1977 October 22 13:53 - ISEE 1 Launch Vehicle: Delta 2000. Delta 2914 623/D135 Apogee: 137,806 km (85,628 mi). International Sun-Earth Explorer. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1977 November 23 01:35 - Meteosat 1 Launch Vehicle: Delta 2000. Delta 2914 620/D136 Apogee: 35,854 km (22,278 mi). European Space Agency satellite. Launch time 0135 GMT. Reached definitive position, 0 deg longitude over the Gulf of Guinea, on 7 December. Launched by United States Delta rocket. Positioned in geosynchronous orbit over the Atlantic Ocean at E-4 deg W in 1977-1981; 8E-12 deg E in 1981-1984; 2E-6 deg E in 1984-1985 As of 29 August 2001 located at 51.23 deg E drifting at 0.354 deg E per day. As of 2007 Mar 3 located at 11.52E drifting at 0.055W degrees per day.

• 1977 December 15 00:47 - Sakura Launch Vehicle: Delta 2000. Delta 2914 624/D137 Apogee: 36,176 km (22,478 mi). Medium-capacity Communications Satellite for Experimental Purposes . Launch vehicle Delta 2914-137. Launch time 0047 UT. Geographical longitude on geostationary orbit: 135 deg E. CS is a spin stabilized geostationary communications satellite. Characteris tics of satellite: Weight approx 340 kg at an early stage in orbit, configuration: cylindrical, height 3.48 m, diameter 2.18m, Expected life more than three years. Positioned in geosynchronous orbit over the Pacific Ocean at 135 deg E in 1977-1983 over the Pacific Ocean 150 deg E in 1984-1985 As of 25 August 2001 located at 78.79 deg E drifting at 4.904 deg W per day. As of 2007 Mar 10 located at 94.72W drifting at 4.901W degrees per day.

• 1978 January 26 17:36 - IUE 1 Launch Vehicle: Delta 2000. Delta 2914 628/D138 Apogee: 41,296 km (25,660 mi). International Ultraviolet Explorer. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit over the Atlantic Ocean at 30 deg W in-60 deg W in 1978-1996 As of 3 September 2001 located at 35.66 deg E drifting at 0.773 deg W per day. As of 2007 Mar 8 located at 14.14W drifting at 0.700W degrees per day.

• 1978 April 7 22:01 - Yuri 1 Launch Vehicle: Delta 2000. Delta 2914 626/D140 Apogee: 35,868 km (22,287 mi). Experimental comsat. Medium-scale broadcasting satellite for experimental purposes (BSE). Launch vehicle Delta 2914-140. Launch time 2201 GMT. Location 110 deg E. Characteristics of satellite: Weight approx 355 kg in an early stage in orbit. Configuration - box shaped satelli te with 2 solar array panels with overall span of 8.95m. Height 3.09m, width 1.32m, length 1.19m. 3-axis stabilized attitude control. Expected life 3 years. Positioned in geosynchronous orbit over the Indian Ocean at 110 deg E in 1978-1982 As of 4 September 2001 located at 44.59 deg E drifting at 0.116 deg E per day. As of 2007 Mar 11 located at 108.19E drifting at 0.031E degrees per day.

• 1978 May 11 22:59 - OTS 2 Launch Vehicle: Delta 3000. Delta 3914 627/D141 Apogee: 36,128 km (22,448 mi). Orbital Test Satellite; replacement for OTS-A; communications experiments. European Space Agency satellite. Launch time 2259 GMT. Reached definitive position, 10 deg east longitude, on May 24 at 0800 GMT. Launch by US Delta rocket. Positioned in geosynchronous orbit over the Atlantic Ocean at 10 deg E in 1978-1982 over the Atlantic Ocean 5 deg E in 1982-1990 As of 30 August 2001 located at 18.51 deg W drifting at 4.070 deg W per day. As of 2007 Mar 9 located at 39.02E drifting at 4.083W degrees per day.

• 1978 June 16 10:49 - GOES 3 Launch Vehicle: Delta 2000. Delta 2914 625/D142 Apogee: 35,812 km (22,252 mi). Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit over the Pacific Ocean at 135 deg W in 1978-1981 over the Americas at 90 deg W in 1982-1984 over the Pacific Ocean 135 deg W in 1985-1987 over the Americas at129 deg W in 1987-1990 over the Pacific Ocean 175 deg W in 1990-1995 over the Americas at 102-110 deg W in 1996-on. As of 5 September 2001 located at 101.78 deg W drifting at 0.017 deg W per day. As of 2007 Mar 9 located at 105.91W drifting at 0.030W degrees per day.

• 1978 July 14 10:43 - ESA-Geos 2 Launch Vehicle: Delta 2000. Delta 2914 631/D143 Apogee: 36,049 km (22,399 mi). Magnetospheric research. European Space Agency satellite. Launch time 1043 GMT. Reached initial operational position of 6 deg East on 26 Jul 1978. During the two years of its mission, it will be maintained in position between longitude 0 and 35 deg east in geosynchronous orbit. Positioned in geosynchronous orbit over the Atlantic Ocean at 36 deg E in 1978-1979 over the Atlantic Ocean 6-36 deg E in 1979-1981; over the Atlantic Ocean 24 deg E in 1981; over the Atlantic Ocean 33-37 deg E in 1981-1984 As of 3 September 2001 located at 177.77 deg W drifting at 3.212 deg W per day. As of 2007 Mar 9 located at 179.12E drifting at 3.212W degrees per day.

• 1978 August 12 15:12 - ISEE 3 Launch Vehicle: Delta 2000. Delta 2914 633/D144 Apogee: 1,089,200 km (676,700 mi). International Sun-Earth Explorer; later renamed the International Cometary Explorer. Measured interaction between solar wind and Earth; rendezvoused with comet Giacobini-Zinner September 11, 1985. After several passes through the Earth's magnetotail, with gravity assists from lunar flybys in March, April, September and October of 1983, a final close lunar flyby (119.4 km above the moon's surface) on December 22, 1983, ejected the spacecraft out of the Earth-Moon system and into a heliocentric orbit ahead of the Earth, on a trajectory intercepting that of Comet Giacobini-Zinner. A total of fifteen propulsive maneuvers (four of which were planned) and five lunar flybys were needed to carry out the transfer from the halo orbit to an escape trajectory from the earth-moon system into a heliocentric orbit. The primary scientific objective of ICE was to study the interaction between the solar wind and a cometary atmosphere. As planned, the spacecraft traversed the plasma tail of Comet Giacobini-Zinner on September 11, 1985, and made in situ measurements of particles, fields, and waves. It also transited between the Sun and Comet Halley in late March 1986, when other spacecraft (Giotto, Planet-A, MS-T5, VEGA) were also in the vicinity of Comet Halley on their comet rendezvous missions. ICE became the first spacecraft to directly investigate two comets. An update to the ICE mission was approved by NASA headquarters in 1991. It defined a Heliospheric mission for ICE consisting of investigations of coronal mass ejections in coordination with ground-based observations, continued cosmic ray studies, and special period observations such as when ICE and Ulysses are on the same solar radial line. As of January 1990, ICE was in a 355 day heliocentric orbit with an aphelion of 1.03 AU, a perihelion of 0.93 AU and an inclination of 0.1 degree. This will bring it back to the vicinity of the earth-moon system in August, 2014. Termination of operations of ISEE 3 was authorized May 5, 1997.

• 1978 November 19 00:46 - NATO 3C Launch Vehicle: Delta 2000. Delta 2914 634/D146 Apogee: 36,299 km (22,555 mi). Positioned in geosynchronous orbit over the Atlantic Ocean at 50 deg W in 1979-1982 over the Atlantic Ocean 21 deg W in 1983-1986 over the Atlantic Ocean 18 deg W in 1987-1991 over the Atlantic Ocean21 deg W in 1991-1992 As of 31 August 2001 located at 122.29 deg E drifting at 6.431 deg W per day. As of 2007 Mar 10 located at 114.22E drifting at 6.438W degrees per day.

• 1978 December 16 00:21 - Anik B1 (Telesat 4) Launch Vehicle: Delta 3000. Delta 3914 632/D147 Apogee: 35,927 km (22,323 mi). Longitude 109.0. Function - telecommunications. Operating entity - Telesat Canada. Positioned in geosynchronous orbit over the Americas at 109 deg W in 1978-1986 As of 29 August 2001 located at 59.48 deg E drifting at 1.672 deg W per day. As of 2007 Mar 9 located at 13.64W drifting at 1.622W degrees per day.

• 1979 January 30 21:42 - SCATHA Launch Vehicle: Delta 2000. Delta 2914 629/D148 Apogee: 42,860 km (26,630 mi). Spacecraft charging experiments. The SCATHA spacecraft had two charged particle injection systems, one of which was the Satellite Positive-Ion-Beam System (SPIBS). This was a xenon ion source which included some of the technologies used in thrusters: however, the discharge chamber was not performance optimized as was done with ion engines. Maximum operating power was 0.045 kW, and the ion source could produce a thrust of about 0.14 mN at a specific impulse of 350 s. Ions could be ejected at 1 keV or 2 keV. Neutralization was accomplished by a tantalum filament. The specific impulse was low because there was no attempt to optimize the propellant efficiency. The SPIBS system was ground-tested for a period of 600 hours. The SCATHA spacecraft was placed in a near geosynchronous orbit. Ion beam operations were performed intermittently over a 247 day period. The SCATHA flight demonstrated that a charged spacecraft, and the dielectric surfaces on it, could be safely discharged by emitting a very low energy (<50 eV) neutral plasma -- in effect shorting the spacecraft to the ambient plasma before dangerous charging levels could be reached. As of 28 August 2001 located at 153.98 deg W drifting at 4.513 deg E per day. As of 2007 Mar 8 located at 19.65W drifting at 4.513E degrees per day.

• 1979 August 10 00:20 - Westar 3 Launch Vehicle: Delta 2000. Delta 2914 638/D149 Apogee: 35,883 km (22,296 mi). Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit at 91 deg W in 1979-1990 As of 2 September 2001 located at 7.26 deg W drifting at 1.139 deg W per day. As of 2007 Mar 9 located at 158.25E drifting at 1.129W degrees per day.

• 1979 December 7 01:35 - RCA Satcom 3 Launch Vehicle: Delta 3000. Delta 3914 622/D150 Apogee: 35,502 km (22,059 mi). Failed before reaching geosynchronous orbit.

• 1980 February 14 15:57 - SMM Launch Vehicle: Delta 3000. Delta 3910 635/D151 Apogee: 408 km (253 mi). Solar Maximum Mission; solar observatory; repaired 4/9/84 by STS-41C in orbit. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

• 1980 September 9 22:27 - GOES 4 Launch Vehicle: Delta 3000. Delta 3914 637/D152 Apogee: 36,213 km (22,501 mi). Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). Positioned in geosynchronous orbit at 98 deg W in 1980-1981; 135 deg W in 1981-1983; 135-143 deg W in 1983; 139 deg W in 1984-1985; 10 deg W in 1985; 44 deg W in 1985-1988 As of 5 September 2001 located at 37.03 deg E drifting at 3.758 deg W per day. As of 2007 Mar 10 located at 45.89E drifting at 3.763W degrees per day.

• 1980 November 15 22:49 - SBS 1 Launch Vehicle: Delta 3000. Delta 3910/PAM 636/D153 Apogee: 35,928 km (22,324 mi). Satellite Business Systems. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit at 100 deg W in 1981-1984; 99 deg W in 1984-1990 As of 4 September 2001 located at 115.72 deg E drifting at 1.627 deg W per day. As of 2007 Mar 10 located at 96.16E drifting at 1.647W degrees per day.

• 1981 May 22 22:29 - GOES 5 Launch Vehicle: Delta 3000. Delta 3914 645/D154 Apogee: 35,810 km (22,250 mi). Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit at 85 deg W in 1981; 75 deg W in 1981-1987; 106 deg W in 1987-1988; 65 deg W in 1988-1989 As of 31 August 2001 located at 107.28 deg W drifting at 0.248 deg W per day. As of 2007 Mar 9 located at 110.88W drifting at 0.246W degrees per day.

• 1981 September 24 23:09 - SBS 2 Launch Vehicle: Delta 3000. Delta 3910/PAM 641/D156 Apogee: 35,854 km (22,278 mi). Positioned in geosynchronous orbit at 97 deg W in 1981-1983; 104 deg W in 1983; 97 deg W in 1983-1988; 99 deg W in 1988-1990; 97 deg W in 1990-1994; 71 deg W in 1994-1996 As of 31 August 2001 located at 125.63 deg E drifting at 0.458 deg W per day. As of 2007 Mar 9 located at 125.97W drifting at 0.561W degrees per day. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

• 1981 November 20 01:37 - RCA Satcom 4; RCA Satcom 3R Launch Vehicle: Delta 3000. Delta 3910/PAM 640/D158 Apogee: 35,840 km (22,260 mi). Positioned in geosynchronous orbit at 131 deg W in 1981-1991 As of 3 September 2001 located at 86.96 deg W drifting at 0.634 deg W per day. As of 2007 Mar 11 located at 140.04W drifting at 0.601W degrees per day.

• 1982 January 16 01:55 - RCA Satcom 4 Launch Vehicle: Delta 3000. Delta 3910/PAM 643/D159 Apogee: 35,994 km (22,365 mi). Positioned in geosynchronous orbit at 83 deg W in 1982-1987; 82 deg W in 1987-1991 As of 2 September 2001 located at 171.96 deg E drifting at 2.443 deg W per day. As of 2007 Mar 9 located at 101.04W drifting at 2.479W degrees per day.

• 1982 February 26 00:04 - Westar 4 Launch Vehicle: Delta 3000. Delta 3910/PAM 644/D160 Apogee: 35,943 km (22,333 mi). TV, telephone. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit at 99 deg W in 1982-1991 As of 2 September 2001 located at 83.31 deg W drifting at 1.825 deg W per day. As of 2007 Mar 8 located at 112.98W drifting at 1.830W degrees per day.

• 1982 April 10 06:47 - Insat 1A Launch Vehicle: Delta 3000. Delta 3910/PAM 647/D161 Apogee: 35,829 km (22,263 mi). Also carried transponders for domestic communications. Operational multipurpose satellite for telecommunications, meteorological, imaging and data relay, radio and television programme distribution and direct television broadcasting for community reception. Geosynchronous orbit longitude 74 E. A/AC.105/INF.391 was reissued as ST/SG/SER.E/79. Also registered by the United States as 1982-31A in ST/SG/SER.E/67, with category C and orbital parameters 1416.7 min, 35032 x 35783 km x 0.5 deg. Positioned in geosynchronous orbit at 73 deg E in 1982 As of 29 August 2001 located at 82.99 deg E drifting at 0.337 deg W per day. As of 2007 Mar 10 located at 39.55E drifting at 0.205W degrees per day.

• 1982 June 9 00:24 - Westar 5 Launch Vehicle: Delta 3000. Delta 3910/PAM 649/D162 Apogee: 36,157 km (22,466 mi). Voice, TV coverage for Alaska, Hawaii, Puerto Rico, Virgin Islands. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit at 123 deg W in 1982-1992 As of 5 September 2001 located at 132.07 deg W drifting at 3.816 deg W per day. As of 2007 Mar 10 located at 135.75E drifting at 3.802W degrees per day.

• 1982 August 26 23:10 - Anik D1 (Telesat 5) Launch Vehicle: Delta 3000. Delta 3920/PAM 651/D164 Apogee: 35,846 km (22,273 mi). Telecommunications. Operating entity Telesat Canada. Longitude 104.5W. Anik D-1 Transmit frequencies (MHz): 3720, 3740, 3760, 3780, 3800, 3820, 3840, 3860, 3880, 3900, 3920, 3940, 3960, 3980, 4000, 4020, 4040, 4060, 4080, 4100, 4120, 4140, 4160, 4180. Power 8.9 watts on each frequency. Positioned in geosynchronous orbit at 104 deg W in 1982-1991 As of 2 September 2001 located at 94.37 deg E drifting at 0.637 deg W per day. As of 2007 Mar 10 located at 52.18E drifting at 0.631W degrees per day.

• 1982 October 28 01:28 - Satcom 5 Launch Vehicle: Delta 3000. Delta 3924 652/D165 Apogee: 35,791 km (22,239 mi). Positioned in geosynchronous orbit at 143 deg W in 1982-1991; 105 deg W in 1992-2007.

• 1983 April 11 21:39 - RCA Satcom 6 Launch Vehicle: Delta 3000. Delta 3924 653/D167 Apogee: 35,953 km (22,340 mi). Positioned in geosynchronous orbit at 139 deg W in 1983-1991; 131 deg W in 1991-1992 As of 5 September 2001 located at 148.59 deg W drifting at 1.499 deg W per day. As of 2007 Mar 10 located at 90.26E drifting at 1.535W degrees per day.

• 1983 April 28 22:26 - GOES 6 Launch Vehicle: Delta 3000. Delta 3914 D168 Apogee: 35,820 km (22,250 mi). Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit at 135 deg W in 1983-1984; 97 deg W in-108 deg W in 1984-1987; 135 deg W in 1987-1992 As of 5 September 2001 located at 75.78 deg W drifting at 0.054 deg W per day. As of 2007 Mar 10 located at 83.60W drifting at 0.139W degrees per day.

• 1983 June 28 23:08 - Galaxy 1 Launch Vehicle: Delta 3000. Delta 3920/PAM D170 Apogee: 35,841 km (22,270 mi). TV. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit at 134 deg W in 1983-1991; 133 deg W in 1991-1994 As of 31 August 2001 located at 92.66 deg W drifting at 0.600 deg W per day. As of 2007 Mar 9 located at 46.95W drifting at 0.505W degrees per day.

• 1983 July 28 22:49 - Telstar 3A Launch Vehicle: Delta 3000. Delta 3920/PAM D171 Apogee: 36,108 km (22,436 mi). Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit at 96 deg W in 1983-1985; 105 deg W in 1985; 96 deg W in 1985-1994; 107 deg W in 1994; 20 deg E in 1995-1996 As of 5 September 2001 located at 143.88 deg W drifting at 2.714 deg W per day. As of 2007 Mar 11 located at 158.94W drifting at 2.690W degrees per day.

• 1983 September 8 22:52 - RCA Satcom 7 Launch Vehicle: Delta 3000. Delta 3924 D172 Apogee: 36,095 km (22,428 mi). Positioned in geosynchronous orbit at 72 deg W in 1983-1995 As of 4 September 2001 located at 143.00 deg E drifting at 3.084 deg W per day. As of 2007 Mar 10 located at 40.27E drifting at 3.104W degrees per day.

• 1983 September 22 22:16 - Galaxy 2 Launch Vehicle: Delta 3000. Delta 3920/PAM D173 Apogee: 35,791 km (22,239 mi). Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit at 74 deg W in 1983-1994 As of 4 September 2001 located at 110.16 deg W drifting at 0.457 deg W per day. As of 2007 Mar 10 located at 57.56E drifting at 0.460W degrees per day.

• 1984 August 16 14:48 - CCE-1 Launch Vehicle: Delta 3000. Delta 3924 D175 Apogee: 49,671 km (30,864 mi). Charge Composition Explorer; detected tracer ions released into magnetosphere by IRM. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1984 September 21 22:18 - Galaxy 3 Launch Vehicle: Delta 3000. Delta 3920/PAM D176 Apogee: 35,931 km (22,326 mi). Geostationary at 3.5 deg W. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit at 94 deg W in 1984-1995 As of 1 September 2001 located at 138.23 deg E drifting at 1.543 deg W per day. As of 2007 Mar 10 located at 125.04W drifting at 1.587W degrees per day.

• 1984 November 14 00:34 - NATO 3D Launch Vehicle: Delta 3000. Delta 3914 D177 Apogee: 35,796 km (22,242 mi). Stationed at 138 deg W. Positioned in geosynchronous orbit at 30 deg W in 1985; 50 deg W in 1985-1986; 21 deg W in 1986-1991; 30 deg W in 1991-1993; 21 deg W in1993-1997; 18 deg W in 1997-1999 As of 31 August 2001 located at 19.33 deg W drifting at 0.021 deg W per day. As of 2007 Mar 10 located at 120.20W drifting at 19.149W degrees per day.

• 1986 May 3 22:18 - GOES G Launch Vehicle: Delta 3000. Stage one main engine shutdown at T+71 seconds due to electrical failure.. Delta 3914 D178

• 1986 September 5 15:08 - USA 19 Launch Vehicle: Delta 3000. Delta 3920 D180 Apogee: 748 km (464 mi). SDIO sensor tests. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

• 1987 February 26 23:05 - GOES 7 Launch Vehicle: Delta 3000. Delta 3914 D179 Apogee: 35,797 km (22,243 mi). Stationed at 83 deg W. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit at 75 deg W in 1987-1988; 108 deg W in-98 deg W in 1989-1992; 111 deg W in 1992; 112 deg W in 1993-1994; 135 deg W in 1995; 98 deg W in 1996-1998 As of 5 September 2001 located at 179.83 deg E drifting at 0.023 deg W per day. As of 2007 Mar 9 located at 176.12W drifting at 0.061W degrees per day.

• 1987 March 20 22:22 - Palapa B2P Launch Vehicle: Delta 3000. Delta 3920/PAM D182 Apogee: 35,906 km (22,310 mi). Stationed at 113 deg W. Positioned in geosynchronous orbit at 113 deg E in 1987-1996; 144 deg E in 1996-1998 As of 28 August 2001 located at 130.30 deg W drifting at 1.327 deg W per day. As of 2007 Mar 3 located at 141.38E drifting at 1.274W degrees per day.

• 1988 February 8 22:08 - USA 30 Launch Vehicle: Delta 3000. Delta 3910 D181 Apogee: 342 km (212 mi). Military tracking exercise; released subsatellites. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B).

• 1989 February 14 18:30 - USA 35 Launch Vehicle: Delta 6000. Delta 6925 D184 Apogee: 21,758 km (13,519 mi). First launch of second generation / operational Global Positioning System. Placed in Plane E Slot 1 of the constellation. Suffered a shutdown of its onboard reaction wheels on March 26, 2000. Decommissioned on April 14, 2000 and replaced by GPS 2R-4.

• 1989 March 24 21:50 - USA 36 Launch Vehicle: Delta 3000. Delta 3920-8 D183 Apogee: 312 km (193 mi). Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).

• 1989 June 10 22:19 - USA 38 Launch Vehicle: Delta 6000. Delta 6925 D185 Apogee: 20,514 km (12,746 mi). Global Positioning System. Placed in Plane B Slot 3.

• 1989 August 18 05:58 - USA 42 Launch Vehicle: Delta 6000. Delta 6925 D186 Apogee: 21,576 km (13,406 mi). Global Positioning System. Retired.

• 1989 August 27 22:59 - BSB-1A Launch Vehicle: Delta 4000. Delta 4925-8 D187 Apogee: 35,795 km (22,241 mi). British DBS; 31 deg W. Direct broadcasting system. Expected operational life, 10 years. Owner/operator: British Satellite Broadcasting Ltd, The Marcopolo Building, Chelsea Bridge, Queenstown Rd, London SW8 4NQ. Positioned in geosynchronous orbit at 31 deg W in 1989-1993; 5 deg E in 1994-2000; 13 deg W in 2000. As of 31 August 2001 located at 12.98 deg W drifting at 0.008 deg W per day. As of 2007 Mar 9 located at 45.02W drifting at 3.908W degrees per day.

• 1989 October 21 09:31 - USA 47 Launch Vehicle: Delta 6000. Delta 6925 D188 Apogee: 21,236 km (13,195 mi). Global Positioning System. Placed in Plane A Slot 5.

• 1989 December 11 18:10 - USA 49 Launch Vehicle: Delta 6000. Delta 6925 D190 Apogee: 20,371 km (12,657 mi). Global Positioning System. Placed in Plane D Slot 3.

• 1990 January 24 22:55 - USA 50 Launch Vehicle: Delta 6000. Delta 6925 D191 Apogee: 21,226 km (13,189 mi). Global Positioning System. Retired.

• 1990 February 14 16:15 - USA 51 Launch Vehicle: Delta 6000. Delta 6920-8 D192 Apogee: 480 km (290 mi). Low-power Atmospheric Compensation Experiment for SDIO. Research and exploration of the upper atmosphere and outer space. The McDonnell Douglas Corporation has provided the following information for its launch of the Losat spacecraft on 14 Feb 1990: LACE spacecraft (Losat-L), launch time 1615:00.626 GMT, ETR Launch Complex 17. Programmed orbital parameters 95.6 min, apogee 551 km, inc. 43.1 deg. Evaluate laser beam distortion in space.

• 1990 March 26 02:45 - USA 54 Launch Vehicle: Delta 6000. Delta 6925 D193 Apogee: 21,156 km (13,145 mi). Global Positioning System. Declared unusable on 21 May 1996 at 22:42 following two uncommanded changes in frequency standards.

• 1990 April 13 22:28 - Palapa B2R Launch Vehicle: Delta 6000. Delta 6925-8 D194 Apogee: 35,795 km (22,241 mi). Refurbished Palapa B2 retrieved by STS-51A; 107.7 deg E. Communication services for Indonesia, the Association of South-East Asian Nations (ASEAN), and Papua New Guinea. Launch time 2227:59.719 Z. Launch complex 17, ETR. Positioned in geosynchronous orbit at 108 deg E in 1990-1999 As of 29 August 2001 located at 42.49 deg E drifting at 0.002 deg E per day. As of 2007 Mar 9 located at 163.55E drifting at 2.663W degrees per day.

• 1990 June 1 21:48 - ROSAT Launch Vehicle: Delta 6000. Delta 6920-10 D195 Apogee: 554 km (344 mi). West German extreme UV, X-ray telescope; all-sky survey.

• 1990 June 12 05:52 - Insat-1D; Insat 1D Launch Vehicle: Delta 4000. Delta 4925-8 D196 Apogee: 35,851 km (22,276 mi). Also performed Indian domestic communications tasks; 83.1 E. Operational multi-purpose satellite for telecommunications, meteorological imaging and data relay, radio and television programme distribution and direct television broadcasting for community reception. Orbital position 83 deg E. Also registered as 1990-5 1A in ST/SG/SER.E/250 by the United States, with category B and orbital parameters 1426.3 min, 35768 x 35811 km x 0.2 deg. Positioned in geosynchronous orbit at 83 deg E in 1990-1999; 74 deg E in 1999-2000 As of 5 September 2001 located at 73.85 deg E drifting at 0.000 deg E per day. As of 2007 Mar 10 located at 71.63E drifting at 0.039E degrees per day.

• 1990 August 2 05:39 - USA 63 Launch Vehicle: Delta 6000. Delta 6925 D197 Apogee: 20,468 km (12,718 mi). Global Positioning System. Placed in Plane E Slot 2.

• 1990 August 18 00:42 - Thor 1 / BSB-R2 Launch Vehicle: Delta 6000. Delta 6925 D198 Apogee: 35,794 km (22,241 mi). UK DBS; 31 deg W. Direct broadcasting system. Expected operational life 12.5 yr. Owner/operator: British Sky Broadcasting Ltd, 6 Centaurs Business Park, Grant Way, Isleworth, Middlesex TW7 5QD. Sold on-orbit in 1992 to Telenor Norway and redesignated Thor 1. Positioned in geosynchronous orbit at 50 deg W in 1990; 31 deg W in 1991-1992; 1 deg W in 1992-1999 As of 3 September 2001 located at 0.72 deg W drifting at 0.001 deg E per day. As of 2007 Mar 9 located at 61.51W drifting at 3.830W degrees per day.

• 1990 October 1 21:56 - USA 64 Launch Vehicle: Delta 6000. Delta 6925 D199 Apogee: 20,363 km (12,652 mi). Global Positioning System. Placed in Plane D Slot 5.

• 1990 October 30 23:16 - Inmarsat 2 F1 Launch Vehicle: Delta 6000. Delta 6925 D200 Apogee: 35,800 km (22,200 mi). Mobile communications; 64.5 deg E. Positioned in geosynchronous orbit at 65 deg E in 1990-1996; 179 deg E in 1996-1999 As of 5 September 2001 located at 178.97 deg E drifting at 0.004 deg W per day. As of 2007 Mar 8 located at 143.50E drifting at 0.015W degrees per day.

• 1990 November 26 21:39 - USA 66 Launch Vehicle: Delta 7000. Delta 7925 D201 Apogee: 20,384 km (12,666 mi). Global Positioning System. Placed in Plane E Slot 5.

• 1991 January 8 00:53 - NATO 4A Launch Vehicle: Delta 7000. Delta 7925 D202 Apogee: 35,800 km (22,200 mi). NATO communications; 18 deg W. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit at 18 deg W in 1991-1999 As of 5 September 2001 located at 17.81 deg W drifting at 0.007 deg W per day. As of 2007 Mar 10 located at 16.26W drifting at 0.003W degrees per day.

• 1991 March 8 23:03 - Inmarsat 2 F2 Launch Vehicle: Delta 6000. Delta 6925 D203 Apogee: 35,793 km (22,240 mi). Mobile and maritime communications; 15.5 deg W. Positioned in geosynchronous orbit at 15 deg W in 1991-1996; 55 deg W in 1997-1999; DRIFT As of 6 September 2001 located at 97.95 deg W drifting at 0.002 deg W per day. As of 2007 Mar 11 located at 97.96W drifting at 0.006W degrees per day.

• 1991 April 13 00:09 - ASC-2 / Spacenet F4 Launch Vehicle: Delta 7000. Delta 7925 D204 Apogee: 35,794 km (22,241 mi). Commercial business communications; stationed at 101 deg W. C, Ku band communications satellite. Positioned in geosynchronous orbit at 101 deg W in 1991-1999; 81 deg W in 2000. As of 6 September 2001 located at 172.04 deg E drifting at 0.007 deg W per day. As of 2007 Mar 9 located at 34.51E drifting at 2.539W degrees per day.

• 1991 May 29 22:55 - Aurora 2 Launch Vehicle: Delta 7000. Delta 7925 D205 Apogee: 36,161 km (22,469 mi). Stationed at 139 deg W. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). Positioned in geosynchronous orbit at 139 deg W in 1991-1999 As of 30 August 2001 located at 148.31 deg E drifting at 4.531 deg W per day. As of 2007 Mar 9 located at 2.15E drifting at 4.534W degrees per day.

• 1991 July 4 02:32 - USA 71 Launch Vehicle: Delta 7000. Delta 7925 D206 Apogee: 20,319 km (12,625 mi). Global Positioning System. Placed in Plane D Slot 1.

• 1992 February 23 22:29 - USA 79 Launch Vehicle: Delta 7000. Delta 7925 D207 Apogee: 20,332 km (12,633 mi). Global Positioning System. Placed in Plane A Slot 2.

• 1992 April 10 03:20 - USA 80 Launch Vehicle: Delta 7000. Delta 7925 D208 Apogee: 20,277 km (12,599 mi). Global Positioning System. Retired 15 August 1997.

• 1992 May 14 00:40 - Palapa B4 Launch Vehicle: Delta 7000. Delta 7925 D209 Apogee: 35,790 km (22,230 mi). Stationed at 118 deg E. Positioned in geosynchronous orbit at 118 deg E in 1992-1999 As of 2 September 2001 located at 118.02 deg E drifting at 0.020 deg W per day. As of 2007 Mar 9 located at 164.88E drifting at 1.157W degrees per day.

• 1992 June 7 16:40 - EUVE Launch Vehicle: Delta 6000. Delta 6920-10 D210 Apogee: 524 km (325 mi). Extreme Ultra-Violet Explorer; mapped galactic EUV sources. The Extreme Ultraviolet Explorer was switched off on February 2, 2001. NASA decided to terminate funding for the mission, even though the spacecraft was still operating well. The sky survey was completed in January 1993 and after that the EUVE was used by guest astronomers for observations of specific targets. The final observations were made on January 26, 2001. After end-of-life tests of the never-used backup high voltage supplies and checking the remaining battery capacity, EUVE was stabilized pointing away from the Sun and sent into safehold at 2359 GMT on January 31. The transmitters were commanded off on February 2.

• 1992 July 7 09:20 - USA 83 Launch Vehicle: Delta 7000. Delta 7925 D211 Apogee: 20,400 km (12,600 mi). Global Positioning System. Placed in Plane F Slot 2.

• 1992 July 24 14:26 - Geotail Launch Vehicle: Delta 6000. Delta 6925 D212 Apogee: 399,941 km (248,511 mi). Measured magnetosphere and Earth's geomagnetic tail. To investigate the structure and dynamics of the geomagnetic tail that extends on the nightside of the Earth. Launch time 1426 GMT. Launching states Japan and the United States of America. Launching organization NASA.

• 1992 August 31 10:41 - Satcom C4 Launch Vehicle: Delta 7000. Delta 7925 D213 Apogee: 35,789 km (22,238 mi). Stationed at 135 deg W. Positioned in geosynchronous orbit at 135 deg W in 1992-1999 As of 3 September 2001 located at 135.00 deg W drifting at 0.002 deg E per day. As of 2007 Mar 10 located at 164.40W drifting at 4.518W degrees per day.

• 1992 September 9 08:57 - USA 84 Launch Vehicle: Delta 7000. Delta 7925 D214 Apogee: 20,453 km (12,708 mi). Global Positioning System. Placed in Plane A Slot 4.

• 1992 October 12 09:47 - DFS 3 Launch Vehicle: Delta 7000. Delta 7925 D215 Apogee: 35,799 km (22,244 mi). Stationed at 33.5 deg E. Communication satellite. Longitude 33.5 deg E. Delta II flight no 212. Positioned in geosynchronous orbit at 31 deg E in 1992; 23 deg E in 1993-1999 As of 1 September 2001 located at 23.45 deg E drifting at 0.001 deg E per day. As of 2007 Mar 9 located at 29.79E drifting at 1.955W degrees per day.

• 1992 November 22 23:54 - USA 85 Launch Vehicle: Delta 7000. Delta 7925 D216 Apogee: 20,325 km (12,629 mi). Global Positioning System. Placed in Plane F Slot 4.

• 1992 December 18 22:16 - USA 87 Launch Vehicle: Delta 7000. Delta 7925 D217 Apogee: 20,324 km (12,628 mi). Global Positioning System. Placed in Plane F Slot 5.

• 1993 February 3 02:55 - USA 88 Launch Vehicle: Delta 7000. Delta 7925 D218 Apogee: 20,359 km (12,650 mi). Global Positioning System. Placed in Plane Plane B Slot 1.

• 1993 March 30 03:09 - USA 90 Launch Vehicle: Delta 7000. Delta 7925 D219 Apogee: 20,293 km (12,609 mi). Global Positioning System. Placed in Plane C Slot 3.

• 1993 May 13 00:07 - USA 91 Launch Vehicle: Delta 7000. Delta 7925 D220 Apogee: 20,345 km (12,641 mi). Global Positioning System. Placed in Plane C Slot 4.

• 1993 June 26 13:27 - USA 92 Launch Vehicle: Delta 7000. Delta 7925 D221 Apogee: 20,250 km (12,580 mi). Global Positioning System. Placed in Plane A Slot 1.

• 1993 August 30 12:38 - USA 94 Launch Vehicle: Delta 7000. Delta 7925 D222 Apogee: 20,255 km (12,585 mi). Global Positioning System. Placed in Plane B Slot 4.

• 1993 October 26 17:04 - USA 96 Launch Vehicle: Delta 7000. Delta 7925 D223 Apogee: 20,260 km (12,580 mi). Global Positioning System. Placed in Plane D Slot 4.

• 1993 December 8 00:48 - USA 98 Launch Vehicle: Delta 7000. Delta 7925 D224 Apogee: 35,805 km (22,248 mi). NATO encrypted communications relay. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C). Positioned in geosynchronous orbit at 6 deg E in 1994-1998; 20 deg W in 1998-1999 As of 2 September 2001 located at 20.16 deg W drifting at 0.009 deg W per day. As of 2007 Mar 10 located at 35.47E drifting at 0.007E degrees per day.

• 1994 February 19 23:45 - Galaxy 1R Launch Vehicle: Delta 7000. Delta 7925-8 D225 Apogee: 35,797 km (22,243 mi). Stationed at 133 deg W; replaced Galaxy 1. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). Positioned in geosynchronous orbit at 133 deg W in 1994-1999 As of 5 September 2001 located at 132.97 deg W drifting at 0.005 deg E per day. As of 2007 Mar 9 located at 88.88W drifting at 3.795W degrees per day.

• 1994 March 10 03:40 - USA 100 Launch Vehicle: Delta 7000. Delta 7925 D226 Apogee: 20,366 km (12,654 mi). Final element of initial GPS constellation. Placed in Plane C Slot 1.

• 1994 November 1 09:31 - Wind Launch Vehicle: Delta 7000. Delta 7925-10 D227 Apogee: 1,578,658 km (980,930 mi). Solar wind research in L-1 halo orbit; part of International Solar Terrestrial Physics program. 221 day orbit. NASA's Wind probe made its 32nd lunar flyby on August 19, 2000, with a closest approach of 7600 km to the surface. This placed it on a 2 million km apogee orbit, adjusted on August 26 to an approximately 567000 x 1620000 km x 21.8 deg `Distant Prograde Orbit', reaching apogee on September 29 2000.

• 1995 August 5 11:10 - Mugunghwa 1 Launch Vehicle: Delta 7000. Partial Failure.. Delta 7925 D228 Apogee: 35,796 km (22,242 mi). 15 Ku-band transponders; boosted into geosynch orbit by satellite thrusters following Delta failure that left satellite in LEO; unplanned use of satellite propellant cut usable satellite lifetime by approx. 50 percent. Stationed at 116.0 deg E. Stage 1 SRM failure Positioned in geosynchronous orbit at 116 deg E in 1995-1999 As of 5 September 2001 located at 47.22 deg E drifting at 0.022 deg E per day. As of 2007 Mar 9 located at 152.88E drifting at 2.155W degrees per day.

• 1995 December 30 13:48 - XTE Launch Vehicle: Delta 7000. Delta 7920-10 D230 Apogee: 583 km (362 mi). X-ray Timing Explorer; X-ray astronomy.

• 1996 January 14 11:10 - Koreasat 2 Launch Vehicle: Delta 7000. Delta 7925 D231 Apogee: 35,792 km (22,240 mi). Geostationary at 116.0E. Positioned in geosynchronous orbit at 116 deg E in 1996-2000 As of 5 September 2001 located at 113.02 deg E drifting at 0.017 deg W per day. As of 2007 Mar 11 located at 116.35E drifting at 0.013W degrees per day.

• 1996 February 17 20:43 - NEAR Launch Vehicle: Delta 7000. Delta 7925-8 D232 Near Earth Asteroid Rendezvous (NEAR) mission was the first of NASA's Discovery missions, a series of small-scale spacecraft designed to proceed from development to flight in under three years for a cost of less than $150 million. The spacecraft's mission was to rendezvous with and achieve orbit around the asteroid Eros in January 1999, and study the asteroid for one year. However as it flew by the Earth on 23 January 1998, a problem caused an abort of the first encounter burn. The mission had to be rescoped for a later encounter but successfully entered orbit around Eros on Valentine's Day 2000 and ended the mission by gently landing on its surface on 12 February 2001.

• 1996 March 28 00:21 - USA 117 Launch Vehicle: Delta 7000. Delta 7925 D234 Apogee: 20,257 km (12,587 mi). Placed in Plane C Slot 2 of the constellation.

• 1996 May 24 01:09 - Galaxy 9 Launch Vehicle: Delta 7000. Delta 7925 D236 Apogee: 35,789 km (22,238 mi). Geostationary at 123.0W. Positioned in geosynchronous orbit at 123 deg W in 1996-2000; 127 deg W in 2000.- As of 5 September 2001 located at 126.96 deg W drifting at 0.001 deg W per day. As of 2007 Mar 11 located at 74.14W drifting at 0.004W degrees per day.

• 1996 July 16 00:50 - USA 126 Launch Vehicle: Delta 7000. Delta 7925 D237 Apogee: 20,237 km (12,574 mi). Placed in Plane E Slot 3 of the constellation.

• 1996 September 12 08:49 - USA 128 Launch Vehicle: Delta 7000. Delta 7925 D238 Apogee: 20,320 km (12,620 mi). Placed in Plane B Slot 2 of the constellation.

• 1996 November 7 17:00 - Mars Global Surveyor Launch Vehicle: Delta 7000. Delta 7925 D239 Mars Global Surveyor entered a 258 x 54021 km x 93.3 deg polar orbit around Mars on 12 September 1997 after a 22 minute burn of its main engine. After a long aerobraking phase to a lower circular orbit, the spacecraft began its primary mission of photographing and observing changes on the Martian surface in March 1999. After nearly ten years of service, the last signals from MGS were received on 3 November 2006. The spacecraft went silent after an incorrect software upload caused its solar arrays to lose power.

• 1996 December 4 06:58 - Mars Pathfinder Launch Vehicle: Delta 7000. Delta 7925 D240 En route Mars

• 1997 January 17 16:28 - GPS 42 Launch Vehicle: Delta 7000. T+12 sec GEM strap-on number 2 structural failure.. Delta 7925 D241 Destroyed in launch vehicle failure.

• 1997 May 20 22:39 - Thor 2 Launch Vehicle: Delta 7000. Delta 7925 D243 Apogee: 35,793 km (22,240 mi). Geosynchronous. Stationed over 0.8W Positioned in geosynchronous orbit at 1 deg W in 1997-1999 As of 5 September 2001 located at 0.73 deg W drifting at 0.000 deg E per day. As of 2007 Mar 9 located at 0.76W drifting at 0.002W degrees per day.

• 1997 July 23 03:43 - USA 132 Launch Vehicle: Delta 7000. Delta 7925 D245 Apogee: 20,235 km (12,573 mi). Placed in Plane F Slot 3 of the constellation.

• 1997 August 25 14:39 - ACE Launch Vehicle: Delta 7000. Delta 7920-8 D247 Apogee: 128,196 km (79,657 mi). Earth-Sun L1 point

• 1997 November 6 00:30 - USA 134 Launch Vehicle: Delta 7000. Delta 7925 D249 Apogee: 20,394 km (12,672 mi). Final GPS Block 2A satellite. Placed in Plane A Slot 3.

• 1998 January 10 00:32 - Skynet 4D Launch Vehicle: Delta 7000. Delta 7925-9.5 D252 Apogee: 35,795 km (22,241 mi). Geostationary at 52.8 degrees E. Positioned in geosynchronous orbit at 53 deg E in 1998-1999; moving As of 4 September 2001 located at 34.00 deg W drifting at 0.004 deg W per day. As of 2007 Mar 10 located at 34.33W drifting at 0.016W degrees per day.

• 1998 February 14 14:34 - Globalstar FM1 Launch Vehicle: Delta 7000. Delta 7420-10C D253 Apogee: 1,414 km (878 mi). Plane 1. Ascending node 43.9 degrees.

• 1998 April 24 22:38 - Globalstar FM6 Launch Vehicle: Delta 7000. Delta 7420-10C D256 Apogee: 1,523 km (946 mi). Plane 2. Ascending node 90.4 degrees.

• 1998 June 10 00:35 - Thor 3 Launch Vehicle: Delta 7000. Delta 7925-9.5 D258 Apogee: 35,798 km (22,243 mi). The spacecraft was delivered to its final orbit in a complex series of five engine burns by three rocket stages. The Delta's second stage demonstrated its restart capability in 4 burns: Burn 1 placed the rocket and payload into a low circular orbit; Burn 2 raised the apogee to 1400 km; Burn 3 circularised the orbit at 1400 km. The second stage then separated, and Burn 4 lowered the spent stage's perigee to a low altitude to ensure the stage would decay quickly and not add to the space junk already on orbit. Stage 3 burned once to place the payload and its kick motor into a high 1400 km perigee geosynchronous transfer orbit. The Stage 4 Star 30 apogee kick motor circularised the spacecraft's orbit at geostationary altitude. Geostationary at 0.8 degrees W. Positioned in geosynchronous orbit at 1 deg W in 1998-1999 As of 4 September 2001 located at 0.83 deg W drifting at 0.000 deg E per day. As of 2007 Mar 9 located at 0.85W drifting at 0.002W degrees per day.

• 1998 August 27 01:17 - Galaxy 10 Launch Vehicle: Delta 3. Due to guidance system induced oscillation all solid motor gimbal hydraulic fluid exhausted after only 71 seconds of flight. Range safety detroyed booster 75 seconds into flight at 16 km altitude.. Delta 8930 D259 Built by Hughes/El Segundo for Panamsat. The satellite carried 24 C-band and 24 Ku-band transponders to provide US/Caribbean coverage, and was to have replaced the ageing SBS-5 satellite at 123 deg West. Replenishing the Galaxy/PAS constellation was a high priority for Panamsat following the loss of Galaxy 4 and problems with Galaxy 7. Galaxy 11 was not scheduled to go up until the first launch of the Sea Launch Zenit-3SL in early 1999, and this booster was in limbo due to legal problems with unauthorised transfer of technical data from Boeing to Russia. In addition there were several PAS satellites awaiting launch over the next year on Proton and Ariane vehicles.

• 1998 October 24 12:08 - Deep Space 1 Launch Vehicle: Delta 7000. Delta 7326-9.5 D261 The primary mission of Deep Space 1 probe was to test new technology for future interplanetary spacecraft, the main experiment being an ion propulsion engine using xenon propellant. It had an initial mass of 486.3 kg, including 81.5 kg of Xenon and 31.1 kg of hydrazine propellants. The Delta 7326 used three Alliant GEM-40 solid strap-on motors, the standard Delta II core vehicle, and a Thiokol Star 37FM solid motor as the third stage. The Delta second stage entered a 185 km parking orbit, then fired again to enter a 174 km x 2744 km x 28.5 degree orbit. The Star 37FM then separated and accelerated to place Deep Space 1 to escape velocity. Deep Space 1 successfully started its ion engine on November 24 after an initial attempt failed after four minutes on November 10. From its initial solar orbit of 0.99 AU x 1.32 AU x 0.4 degree, Deep Space 1 was to fly past the 3 km diameter asteroid 1992 KD at its perihelion of 1.33 AU. The spacecraft then flew past the nucleus of comet 19P/Borrelly at a distance of 2200 km at 2230 GMT on Sep 22 2001. It survived the encounter in good shape, sending back photos of the comet. At the encounter DS1 was in a 1.3 x 1.5 AU x 0 deg (ecliptic) solar orbit; Borrelly's orbit was 1.3 x 5.9 AU.

• 1998 November 22 23:54 - BONUM-1 Launch Vehicle: Delta 7000. Delta 7925-9.5 D263 Apogee: 35,787 km (22,236 mi). BONUM-1 provided domestic Russian television service for Media Most, a Moscow media enterprise, broadcasting 50 channels to western Russia from a geostationary orbit at 36 degrees E. Mass was 1426 kg at launch, 800 kg of that propellant. BONUM-1 carried 8 Ku-band transponders. The Delta upper stage raised the initial 157 km x 189 km at 29.2 degree parking orbit to 159 km x 1304 km and then 1228 km x 1683 km at 26.7 degrees. A Thiokol Star 48B solid third stage boosted BONUM-1 to a 1285 x 36703 km x 19.5 degree geostationary transfer orbit, with the Thiokol Star 30 apogee kick motor placing the satellite in its final geostationary orbit. After separation of the spacecraft, the Delta made a final depletion burn to lower its orbit to 274 km x 1552 km x 25.6 degree to ensure it would quickly decay and burn up in the atmosphere. Geostationary at 35.9 degrees E. From 8 August 2000 position was 56.0 degrees E. Positioned in geosynchronous orbit at 36 deg E in 1998-1999 55 deg E in 2000. As of 5 September 2001 located at 56.03 deg E drifting at 0.016 deg W per day. As of 2007 Mar 10 located at 55.94E drifting at 0.008W degrees per day.

• 1998 December 11 18:45 - Mars Climate Orbiter Launch Vehicle: Delta 7000. Delta 7425-9.5 D264 The Mars Climate Orbiter was the second flight of the Mars Surveyor Program. The probe was to enter a 160 km x 38600 km polar orbit around Mars on September 23,1999, and use aerobraking to reach a 373 km x 437 km x 92.9 degree sun-synchronous mapping orbit by November 23 1999. While the Mars Orbit Insertion burn began as planned on September 23, 1999 at 08:50 GMT, no signal was received after the spacecraft went behind the planet. Subsequent investigation showed that the spacecraft had plunged deep into the Martian atmosphere, with its closest approach to Mars being 57 km. It was concluded that the spacecraft burnt up in the atmosphere. It was later found that cutbacks in tracking, combined with incorrect values in a look-up table imbedded deep in the spacecraft software (use of pounds force instead of newtons) were to blame. This failure led to a shake-up of NASA's 'faster, better, cheaper' approach to unmanned spaceflight.

• 1999 January 3 20:21 - Mars Polar Lander Launch Vehicle: Delta 7000. Delta 7425-9.5 D265 The Mars Polar Lander was placed by the first burn of the second stage into a 157 x 245 km x 28.35 deg parking orbit. The second stage restarted at 20:55 GMT and shut down in a 226 x 740 km x 25.8 deg Earth orbit. The solid rocket third stage (a Star 48B with a Nutation Control System and a yo-yo despin device) then ignited and put the spacecraft into solar orbit, separating at 21:02 GMT. Mars Polar Lander was to land near the south pole of Mars on December 3, 1999, and conduct conduct a three month mission, trenching near its landing site and testing for the presense of frozen water and carbon dioxide. Attached were two Deep Space 2 Microprobes, penetrators which would impact the Martian surface separately from the lander and return data on subsurface conditions from widely spaced points.

  When the spacecraft reached Mars on December 3, the lander separated from the cruise stage at 19:51 UTC and the two penetrators, Scott and Amundsen, were to separate about 20 seconds later. No further communications were ever received from the spacecraft. Landing had been expected at 20:01 UTC at 76.1S 195.3W, with the penetrators landing a few kilometres from each other at 75.0S 196.5W.

  This failure resulted in a review and reassessment of NASA's 'faster, better, cheaper' approach to planetary missions.

• 1999 February 7 21:04 - Stardust Launch Vehicle: Delta 7000. Delta 7426-9.5 D266 Stardust was to fly within 100 km of comet 81P/Wild-2 in January 2004 and recover cometary material using an aerogel substance. A return capsule would land on a lake bed in Utah in January 2006, returning the material to earth. The launch went as planned. The second stage ignited at 21:08 GMT and its first burn put the vehicle into a 185 km x 185 km x 28 degree parking orbit at 21:14 GMT. The second stage second burn at 21:25 changed the orbit to planned values of 178 km x 7184 km x 28.5 degrees. The Star 37FM solid third stage ignited at 21:29 GMT and placed the spacecraft into a 2 year period solar orbit. The spacecraft separated at 21:31 GMT. Meanwhile, the Delta 266 second stage burned a third time on its own, until its propellants were depleted, entering a final orbit of 294 km x 6818 km x 22.5 degrees. The Stardust probe flew past Earth at a distance of 3706 km at 1115 GMT on January 15, 2001, and flew near the Moon at a distance of 98000 km at around 0200 GMT on January 16. The gravity assist flyby changed Stardust's heliocentric orbit from 0.956 x 2.216 AU x 0.0 deg to 0.983 x 2.285 AU x 3.7 deg.

• 1999 May 5 01:00 - Orion 3 Launch Vehicle: Delta 3. Engine failure at ignition for second burn of Centaur stage.. Delta 8930 D269 Apogee: 2,529 km (1,571 mi). The Centaur RL-10B-2 second stage engine's combustion chamber ruptured at the beginning of the second burn. The hot gases already in the chamber vented, putting the stage/spacecraft assembly into an uncontrollable tumble. The Orion 3 communications satellite ended up in a useless parking or