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Delta 3914
Part of Thor Family
American orbital launch vehicle. Four stage vehicle consisting of 9 x Castor 4 + 1 x ELT Thor/RS-27 + 1 x Delta P /TR-201 + 1 x Star 37E

Status: Retired 1987. First Launch: 1975-12-13. Last Launch: 1986-05-03. Number: 12 . Payload: 951 kg (2,096 lb). Thrust: 3,046.20 kN (684,813 lbf). Gross mass: 185,382 kg (408,697 lb). Height: 35.00 m (114.00 ft). Diameter: 2.44 m (8.00 ft).

LEO Payload: 951 kg (2,096 lb). Payload: 954 kg (2,103 lb) to a GTO.


More at: Delta 3914.

Family: orbital launch vehicle. Country: USA. Spacecraft: GOES, AS 1000, NATO 3, ECS/OTS, Anik satellite, Exosat. Projects: Anik, Satcom. Launch Sites: Cape Canaveral, Vandenberg, Cape Canaveral LC17A, Vandenberg SLC2W. Stages: Delta P, Delta Thor RS27, Castor 4, Star 37. Agency: NATO, Douglas.

1975 December 13 - . 01:56 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. LV Family: Thor. Launch Vehicle: Delta 3914.
  • Satcom 1 - . Mass: 464 kg (1,022 lb). Nation: USA. Agency: RCA Amer. Manufacturer: Lockheed. Program: Satcom. Class: Communications. Type: Civilian communications satellite. Spacecraft: AS 1000. Completed Operations Date: 1984-06-04 . USAF Sat Cat: 8476 . COSPAR: 1975-117A. Apogee: 36,076 km (22,416 mi). Perigee: 35,875 km (22,291 mi). Inclination: 12.8000 deg. Period: 1,445.80 min.

    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 March 26 - . 22:47 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. LV Family: Thor. Launch Vehicle: Delta 3914.
  • RCA Satcom 2 - . Payload: Satcom 2. Mass: 463 kg (1,020 lb). Nation: USA. Agency: RCA Amer. Manufacturer: Lockheed. Program: Satcom. Class: Communications. Type: Civilian communications satellite. Spacecraft: AS 1000. Completed Operations Date: 1985-01-17 . USAF Sat Cat: 8774 . COSPAR: 1976-029A. Apogee: 36,494 km (22,676 mi). Perigee: 36,016 km (22,379 mi). Inclination: 8.6000 deg. Period: 1,460.10 min.

    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.


1977 September 13 - . 23:31 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. LV Family: Thor. Launch Vehicle: Delta 3914. FAILURE: Vehicle exploded, probably SRM case.. Failed Stage: 0.
  • OTS 1 - . Mass: 865 kg (1,906 lb). Nation: Europe. Agency: ESA. Class: Technology. Type: Navigation technology satellite. Spacecraft: ECS/OTS. Decay Date: 1977-09-13 . Orbital Test Satellite; failed to orbit..

1978 May 11 - . 22:59 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. LV Family: Thor. Launch Vehicle: Delta 3914.
  • OTS 2 - . Payload: OTS 2. Mass: 865 kg (1,906 lb). Nation: Europe. Agency: ESA. Class: Technology. Type: Navigation technology satellite. Spacecraft: ECS/OTS. Completed Operations Date: 1991-01-02 . USAF Sat Cat: 10855 . COSPAR: 1978-044A. Apogee: 36,128 km (22,448 mi). Perigee: 36,085 km (22,422 mi). Inclination: 13.1000 deg. Period: 1,452.50 min.

    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 December 16 - . 00:21 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. LV Family: Thor. Launch Vehicle: Delta 3914.
  • Anik B1 (Telesat 4) - . Payload: Anik B1. Mass: 900 kg (1,980 lb). Nation: Canada. Agency: Telesat. Program: Anik. Class: Communications. Type: Civilian communications satellite. Spacecraft Bus: AS 3000. Spacecraft: Anik satellite. Completed Operations Date: 1986-12-17 . USAF Sat Cat: 11153 . COSPAR: 1978-116A. Apogee: 35,927 km (22,323 mi). Perigee: 35,900 km (22,300 mi). Inclination: 6.6000 deg. Period: 1,442.60 min.

    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.

  • DRIMS - . Mass: 900 kg (1,980 lb). Nation: Canada. Agency: NASA Greenbelt. Program: Anik. Decay Date: 1979-04-23 . USAF Sat Cat: 11154 . COSPAR: 1978-116B. Apogee: 1,832 km (1,138 mi). Perigee: 181 km (112 mi). Inclination: 28.3000 deg. Period: 105.26 min.

    First use of the Delta Redundant Inertial Measurement System (DRIMS). DRIMS improved the inertial measurement unit introduced with DIGS, but kept the DIGS guidance computer. DRIMS added redundancy on all axes of motion. The Delta upper stage was tracked as a separate functional object with this designation on this launch.


1979 December 7 - . 01:35 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. LV Family: Thor. Launch Vehicle: Delta 3914.
  • RCA Satcom 3 - . Payload: Satcom 3. Mass: 463 kg (1,020 lb). Nation: USA. Agency: RCA Amer. Manufacturer: Lockheed. Program: Satcom. Class: Communications. Type: Civilian communications satellite. Spacecraft: AS 1000. USAF Sat Cat: 11635 . COSPAR: 1979-101A. Apogee: 35,502 km (22,059 mi). Perigee: 8,306 km (5,161 mi). Inclination: 8.1000 deg. Period: 788.90 min. Failed before reaching geosynchronous orbit..

1980 September 9 - . 22:27 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. LV Family: Thor. Launch Vehicle: Delta 3914.
  • GOES 4 - . Payload: GOES D. Mass: 627 kg (1,382 lb). Nation: USA. Agency: NOAA. Class: Earth. Type: Weather satellite. Spacecraft: GOES. Completed Operations Date: 1988-11-09 . USAF Sat Cat: 11964 . COSPAR: 1980-074A. Apogee: 36,213 km (22,501 mi). Perigee: 35,948 km (22,337 mi). Inclination: 9.4000 deg. Period: 1,451.20 min.

    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.


1981 May 22 - . 22:29 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. LV Family: Thor. Launch Vehicle: Delta 3914.
  • GOES 5 - . Payload: GOES E. Mass: 836 kg (1,843 lb). Nation: USA. Agency: NOAA. Class: Earth. Type: Weather satellite. Spacecraft: GOES. Completed Operations Date: 1990-07-01 . USAF Sat Cat: 12472 . COSPAR: 1981-049A. Apogee: 35,810 km (22,250 mi). Perigee: 35,775 km (22,229 mi). Inclination: 6.5000 deg. Period: 1,436.40 min.

    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.


1983 April 28 - . 22:26 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. LV Family: Thor. Launch Vehicle: Delta 3914.
  • GOES 6 - . Payload: GOES F. Mass: 836 kg (1,843 lb). Nation: USA. Agency: NOAA. Class: Earth. Type: Weather satellite. Spacecraft: GOES. Completed Operations Date: 1992-05-19 . USAF Sat Cat: 14050 . COSPAR: 1983-041A. Apogee: 35,820 km (22,250 mi). Perigee: 35,778 km (22,231 mi). Inclination: 10.1000 deg. Period: 1,436.70 min.

    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 May 26 - . 15:18 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg SLC2W. LV Family: Thor. Launch Vehicle: Delta 3914.
  • Exosat - . Mass: 510 kg (1,120 lb). Nation: Europe. Agency: ESA. Class: Astronomy. Type: X-ray astronomy satellite. Spacecraft: Exosat. Decay Date: 1986-05-06 . USAF Sat Cat: 14095 . COSPAR: 1983-051A. Apogee: 191,878 km (119,227 mi). Perigee: 340 km (210 mi). Inclination: 72.5000 deg. Period: 5,442.10 min.

    X-ray experiments. Launch time 1518 UT. Launching agency ESA. EXOSAT is a space research satellite of the European Space Agency. The scientific objectives of the EXOSAT mission are to measure the position, structural features, spectral and temporal characteristics of cosmic X-ray sources in the energy range from less than 0.1 keV to greater than 50 keV.


1984 November 14 - . 00:34 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. LV Family: Thor. Launch Vehicle: Delta 3914.
  • NATO 3D - . Mass: 320 kg (700 lb). Nation: NATO. Agency: NATO. Program: NATO. Class: Communications. Type: Military communications satellite. Spacecraft: NATO 3. USAF Sat Cat: 15391 . COSPAR: 1984-115A. Apogee: 35,796 km (22,242 mi). Perigee: 35,779 km (22,231 mi). Inclination: 2.2000 deg. Period: 1,436.20 min.

    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 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC17A. LV Family: Thor. Launch Vehicle: Delta 3914. FAILURE: Stage one main engine shutdown at T+71 seconds due to electrical failure.. Failed Stage: 1.
  • GOES G - . Payload: GOES G. Mass: 836 kg (1,843 lb). Nation: USA. Agency: NOAA. Class: Earth. Type: Weather satellite. Spacecraft: GOES. Decay Date: 1986-04-26 .


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