Encyclopedia Astronautica
IDCSP



idcsp.jpg
IDSC-P
Credit: USAF
idcsp2.jpg
IDSC-P
Credit: USAF
American military communications satellite. 35 launches, 1966.06.16 (IDCSP 1-1) to 1968.06.13 (IDCSP 4-8).

Initial Defense Communications Satellite Program (IDCSP) spacecraft were launched in the 1960's to provide America's first geosynchronous orbit communications system.

In late October 1964, Philco-Ford Corporation was assigned prime contractor responsibilities to design, develop and assemble both the satellites and the multiple-launch dispensers for the Initial Defense Communications Satellite Program (IDCSP). Under the overall direction of the Defense Communications Agency, the space hardware portion of the program was the responsibility of the Air Force Space Systems Division, assisted by the Aerospace Corporation. The Initial Defense Communications Satellite Program provided the Pentagon with its first geosynchronous communications system. IDCSP satellites were spin-stabilized 26 sided polygons, 86 cm in diameter, covered with solar panels, and had a mass of 45 kg. 8 were dispensed on a single Titan 3C orbit in slightly sub-synchronous orbits, where they would drift about thirty degrees per day; the idea was that a backup was always visible to the earth station if one failed. On June 16, 1966, an Air Force Titan III-C rocket launched 7 IDCSP satellites (plus a gravity-gradient experimental satellite) into near-synchronous equatorial orbit at an altitude of approximately 34,000 km to initiate the network-19 months from the start of hardware design. On January 18, 1967, 8 additional satellites were launched and on July 1, 1967, 4 more were sent into orbit. IDCSP satellites transmitted reconnaissance photos and other data during the Viet Nam War. They were succeeded by NATO and DSCS true geosynchronous satellites.

AKA: Initial Defense Communictions Satellite Program.
Gross mass: 45 kg (99 lb).
First Launch: 1966.06.16.
Last Launch: 1968.06.13.
Number: 35 .

More... - Chronology...


Associated Countries
See also
  • Titan The Titan launch vehicle family was developed by the United States Air Force to meet its medium lift requirements in the 1960's. The designs finally put into production were derived from the Titan II ICBM. Titan outlived the competing NASA Saturn I launch vehicle and the Space Shuttle for military launches. It was finally replaced by the USAF's EELV boosters, the Atlas V and Delta IV. Although conceived as a low-cost, quick-reaction system, Titan was not successful as a commercial launch vehicle. Air Force requirements growth over the years drove its costs up - the Ariane using similar technology provided lower-cost access to space. More...

Associated Launch Vehicles
  • Titan American orbital launch vehicle. The Titan launch vehicle family was developed by the United States Air Force to meet its medium lift requirements in the 1960's. The designs finally put into production were derived from the Titan II ICBM. Titan outlived the competing NASA Saturn I launch vehicle and the Space Shuttle for military launches. It was finally replaced by the USAF's EELV boosters, the Atlas V and Delta IV. Although conceived as a low-cost, quick-reaction system, Titan was not successful as a commercial launch vehicle. Air Force requirements growth over the years drove its costs up - the Ariane using similar technology provided lower-cost access to space. More...
  • Titan 3C American orbital launch vehicle. Titan 3A with five segment solid motors. Man-rated design originally developed for Dynasoar spaceplane. More...

Associated Manufacturers and Agencies
  • USAF American agency overseeing development of rockets and spacecraft. United States Air Force, USA. More...

Bibliography
  • McDowell, Jonathan, Jonathan's Space Home Page (launch records), Harvard University, 1997-present. Web Address when accessed: here.
  • JPL Mission and Spacecraft Library, Jet Propulsion Laboratory, 1997. Web Address when accessed: here.
  • Bramscher, Robert G, "A Survey of Launch Vehicle Failures", Spaceflight, 1980, Volume 22, page 351.
  • McDowell, Jonathan, Launch Log, October 1998. Web Address when accessed: here.

Associated Launch Sites
  • Cape Canaveral America's largest launch center, used for all manned launches. Today only six of the 40 launch complexes built here remain in use. Located at or near Cape Canaveral are the Kennedy Space Center on Merritt Island, used by NASA for Saturn V and Space Shuttle launches; Patrick AFB on Cape Canaveral itself, operated the US Department of Defense and handling most other launches; the commercial Spaceport Florida; the air-launched launch vehicle and missile Drop Zone off Mayport, Florida, located at 29.00 N 79.00 W, and an offshore submarine-launched ballistic missile launch area. All of these take advantage of the extensive down-range tracking facilities that once extended from the Cape, through the Caribbean, South Atlantic, and to South Africa and the Indian Ocean. More...
  • Cape Canaveral LC41 Titan, Atlas V launch complex. Complexes 40 and 41 were constructed as part of the Integrate-Transfer-Launch (ITL) Titan launch facility at the north end of Cape Canaveral in the early 1960s. Over the next three decades, the complexes supported a wide variety of military space missions involving Titan IIIC, Titan 34D and Titan IV. Complex 41 was deactivated at the end of 1977, then upgraded for the Titan IV program in the 1986-88 period. In October 1999, Complex 41 was demolished with high explosives in order for a new pad for launch of the Atlas 5 rocket to be erected. By then it had been the starting point for 27 Titan flights. More...

IDCSP Chronology


1964 October - .
  • Philco-Ford contracted for Initial Defense Communications Satellite Program (IDCSP). - . Nation: USA. Spacecraft: IDCSP. Philco-Ford Corporation was assigned prime contractor responsibilities to design, develop and assemble both the satellites and the multiple-launch dispensers for the Initial Defense Communications Satellite Program (IDCSP). The IDCSP provided the Pentagon with its first geosynchronous communications system.

1966 June 16 - . 14:00 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC41. LV Family: Titan. Launch Vehicle: Titan 3C. LV Configuration: Titan IIIC 3C-11.
  • IDCSP 1-1 - . Payload: IDCSP 1 / OPS 9311. Mass: 45 kg (99 lb). Nation: USA. Agency: USAF. Class: Communications. Type: Military communications satellite. Spacecraft: IDCSP. USAF Sat Cat: 2215 . COSPAR: 1966-053B. Apogee: 33,888 km (21,056 mi). Perigee: 33,656 km (20,912 mi). Inclination: 8.3000 deg. Period: 1,334.40 min. Summary: Space craft engaged in investigation of spaceflight techniques and technology (US Cat A)..
  • IDCSP 1-7 - . Payload: IDCSP 7 / OPS 9317. Mass: 45 kg (99 lb). Nation: USA. Agency: USAF. Class: Communications. Type: Military communications satellite. Spacecraft: IDCSP. USAF Sat Cat: 2221 . COSPAR: 1966-053H. Apogee: 34,359 km (21,349 mi). Perigee: 33,711 km (20,947 mi). Inclination: 5.0000 deg. Period: 1,347.60 min. Summary: Space craft engaged in investigation of spaceflight techniques and technology (US Cat A)..
  • IDCSP 1-6 - . Payload: IDCSP 6 / OPS 9316. Mass: 45 kg (99 lb). Nation: USA. Agency: USAF. Class: Communications. Type: Military communications satellite. Spacecraft: IDCSP. USAF Sat Cat: 2220 . COSPAR: 1966-053G. Apogee: 34,215 km (21,260 mi). Perigee: 33,707 km (20,944 mi). Inclination: 8.7000 deg. Period: 1,343.90 min. Summary: Space craft engaged in investigation of spaceflight techniques and technology (US Cat A)..
  • IDCSP 1-5 - . Payload: IDCSP 5 / OPS 9315. Mass: 45 kg (99 lb). Nation: USA. Agency: USAF. Class: Communications. Type: Military communications satellite. Spacecraft: IDCSP. USAF Sat Cat: 2219 . COSPAR: 1966-053F. Apogee: 34,093 km (21,184 mi). Perigee: 33,712 km (20,947 mi). Inclination: 8.9000 deg. Period: 1,340.90 min. Summary: Space craft engaged in investigation of spaceflight techniques and technology (US Cat A)..
  • IDCSP 1-4 - . Payload: IDCSP 4 / OPS 9314. Mass: 45 kg (99 lb). Nation: USA. Agency: USAF. Class: Communications. Type: Military communications satellite. Spacecraft: IDCSP. USAF Sat Cat: 2218 . COSPAR: 1966-053E. Apogee: 34,017 km (21,137 mi). Perigee: 33,694 km (20,936 mi). Inclination: 8.0000 deg. Period: 1,338.60 min. Summary: Space craft engaged in investigation of spaceflight techniques and technology (US Cat A)..
  • IDCSP 1-3 - . Payload: IDCSP 3 / OPS 9313. Mass: 45 kg (99 lb). Nation: USA. Agency: USAF. Class: Communications. Type: Military communications satellite. Spacecraft: IDCSP. USAF Sat Cat: 2217 . COSPAR: 1966-053D. Apogee: 33,955 km (21,098 mi). Perigee: 33,669 km (20,920 mi). Inclination: 8.3000 deg. Period: 1,336.40 min. Summary: Space craft engaged in investigation of spaceflight techniques and technology (US Cat A)..
  • IDCSP 1-2 - . Payload: IDCSP 2 / OPS 9312. Mass: 45 kg (99 lb). Nation: USA. Agency: USAF. Class: Communications. Type: Military communications satellite. Spacecraft: IDCSP. USAF Sat Cat: 2216 . COSPAR: 1966-053C. Apogee: 33,923 km (21,078 mi). Perigee: 33,657 km (20,913 mi). Inclination: 4.9000 deg. Period: 1,335.30 min. Summary: Space craft engaged in investigation of spaceflight techniques and technology (US Cat A)..

1966 August 26 - . 13:59 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC41. LV Family: Titan. Launch Vehicle: Titan 3C. LV Configuration: Titan IIIC 3C-12. FAILURE: Payload fairing broke up 78 seconds after launch.. Failed Stage: S.
  • IDCSP (8) ... IDCSP (14) - . Nation: USA. Agency: USAF. Class: Communications. Type: Military communications satellite. Spacecraft: IDCSP. Decay Date: 1966-08-26 . COSPAR: F660826A. Summary: 8 satellites, each weighing 45 kg..
  • IDCSP - . Payload: IDCSP. Nation: USA. Agency: USAF. Spacecraft: IDCSP. COSPAR: F660826E.
  • IDCSP - . Payload: IDCSP. Nation: USA. Agency: USAF. Spacecraft: IDCSP. COSPAR: F660826H.
  • IDCSP - . Payload: IDCSP. Nation: USA. Agency: USAF. Spacecraft: IDCSP. COSPAR: F660826D.
  • IDCSP - . Payload: IDCSP. Nation: USA. Agency: USAF. Spacecraft: IDCSP. COSPAR: F660826C.
  • IDCSP - . Payload: IDCSP. Nation: USA. Agency: USAF. Spacecraft: IDCSP. COSPAR: F660826F.
  • IDCSP - . Payload: IDCSP. Nation: USA. Agency: USAF. Spacecraft: IDCSP. COSPAR: F660826G.
  • IDCSP - . Payload: IDCSP. Nation: USA. Agency: USAF. Spacecraft: IDCSP. COSPAR: F660826B.

1967 January 18 - . 14:19 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC41. LV Family: Titan. Launch Vehicle: Titan 3C. LV Configuration: Titan IIIC 3C-13.
  • IDCSP 2-1 - . Payload: IDCSP 8 / OPS 9321. Mass: 45 kg (99 lb). Nation: USA. Agency: USAF. Class: Communications. Type: Military communications satellite. Spacecraft: IDCSP. USAF Sat Cat: 2645 . COSPAR: 1967-003A. Apogee: 33,829 km (21,020 mi). Perigee: 33,518 km (20,827 mi). Inclination: 8.7000 deg. Period: 1,329.50 min. Summary: Space craft engaged in investigation of spaceflight techniques and technology (US Cat A)..
  • IDCSP 2-7 - . Payload: IDCSP 14 / OPS 9327. Mass: 45 kg (99 lb). Nation: USA. Agency: USAF. Class: Communications. Type: Military communications satellite. Spacecraft: IDCSP. USAF Sat Cat: 2654 . COSPAR: 1967-003G. Apogee: 34,127 km (21,205 mi). Perigee: 33,622 km (20,891 mi). Inclination: 8.6000 deg. Period: 1,339.50 min. Summary: Space craft engaged in investigation of spaceflight techniques and technology (US Cat A)..
  • IDCSP 2-2 - . Payload: IDCSP 9 / OPS 9322. Mass: 45 kg (99 lb). Nation: USA. Agency: USAF. Class: Communications. Type: Military communications satellite. Spacecraft: IDCSP. USAF Sat Cat: 2649 . COSPAR: 1967-003B. Apogee: 33,830 km (21,020 mi). Perigee: 33,533 km (20,836 mi). Inclination: 8.5000 deg. Period: 1,329.90 min. Summary: Space craft engaged in investigation of spaceflight techniques and technology (US Cat A)..
  • IDCSP 2-3 - . Payload: IDCSP 10 / OPS 9323. Mass: 45 kg (99 lb). Nation: USA. Agency: USAF. Class: Communications. Type: Military communications satellite. Spacecraft: IDCSP. USAF Sat Cat: 2650 . COSPAR: 1967-003C. Apogee: 33,843 km (21,029 mi). Perigee: 33,549 km (20,846 mi). Inclination: 8.3000 deg. Period: 1,330.70 min. Summary: Space craft engaged in investigation of spaceflight techniques and technology (US Cat A)..
  • IDCSP 2-4 - . Payload: IDCSP 11 / OPS 9324. Mass: 45 kg (99 lb). Nation: USA. Agency: USAF. Class: Communications. Type: Military communications satellite. Spacecraft: IDCSP. USAF Sat Cat: 2651 . COSPAR: 1967-003D. Apogee: 33,873 km (21,047 mi). Perigee: 33,579 km (20,864 mi). Inclination: 8.5000 deg. Period: 1,332.10 min. Summary: Space craft engaged in investigation of spaceflight techniques and technology (US Cat A)..
  • IDCSP 2-5 - . Payload: IDCSP 12 / OPS 9325. Mass: 45 kg (99 lb). Nation: USA. Agency: USAF. Class: Communications. Type: Military communications satellite. Spacecraft: IDCSP. USAF Sat Cat: 2652 . COSPAR: 1967-003E. Apogee: 33,935 km (21,086 mi). Perigee: 33,599 km (20,877 mi). Inclination: 8.5000 deg. Period: 1,334.20 min. Summary: Space craft engaged in investigation of spaceflight techniques and technology (US Cat A)..
  • IDCSP 2-6 - . Payload: IDCSP 13 / OPS 9326. Mass: 45 kg (99 lb). Nation: USA. Agency: USAF. Class: Communications. Type: Military communications satellite. Spacecraft: IDCSP. USAF Sat Cat: 2653 . COSPAR: 1967-003F. Apogee: 33,995 km (21,123 mi). Perigee: 33,631 km (20,897 mi). Inclination: 11.8000 deg. Period: 1,336.50 min. Summary: Space craft engaged in investigation of spaceflight techniques and technology (US Cat A)..
  • IDCSP 2-8 - . Payload: IDCSP 15 / OPS 9328. Mass: 45 kg (99 lb). Nation: USA. Agency: USAF. Class: Communications. Type: Military communications satellite. Spacecraft: IDCSP. USAF Sat Cat: 2655 . COSPAR: 1967-003H. Apogee: 34,224 km (21,265 mi). Perigee: 33,666 km (20,919 mi). Inclination: 8.6000 deg. Period: 1,343.10 min. Summary: Space craft engaged in investigation of spaceflight techniques and technology (US Cat A)..

1967 July 1 - . 13:15 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC41. LV Family: Titan. Launch Vehicle: Titan 3C. LV Configuration: Titan IIIC 3C-14.
  • IDCSP 3-1 - . Payload: IDCSP 16 / OPS 9331. Mass: 45 kg (99 lb). Nation: USA. Agency: USAF. Class: Communications. Type: Military communications satellite. Spacecraft: IDCSP. USAF Sat Cat: 2862 . COSPAR: 1967-066A. Apogee: 33,515 km (20,825 mi). Perigee: 33,030 km (20,520 mi). Inclination: 11.9000 deg. Period: 1,309.60 min. Summary: Space craft engaged in investigation of spaceflight techniques and technology (US Cat A)..
  • IDCSP 3-3 - . Payload: IDCSP 18 / OPS 9333. Mass: 45 kg (99 lb). Nation: USA. Agency: USAF. Class: Communications. Type: Military communications satellite. Spacecraft: IDCSP. USAF Sat Cat: 2864 . COSPAR: 1967-066C. Apogee: 33,547 km (20,845 mi). Perigee: 33,079 km (20,554 mi). Inclination: 11.9000 deg. Period: 1,311.60 min. Summary: Space craft engaged in investigation of spaceflight techniques and technology (US Cat A)..
  • IDCSP 3-2 - . Payload: IDCSP 17 / OPS 9332. Mass: 45 kg (99 lb). Nation: USA. Agency: USAF. Class: Communications. Type: Military communications satellite. Spacecraft: IDCSP. USAF Sat Cat: 2863 . COSPAR: 1967-066B. Apogee: 33,517 km (20,826 mi). Perigee: 33,046 km (20,533 mi). Inclination: 11.9000 deg. Period: 1,310.00 min. Summary: Space craft engaged in investigation of spaceflight techniques and technology (US Cat A)..
  • IDCSP 3-4 - . Payload: IDCSP 19/DATS / OPS 9334. Mass: 68 kg (149 lb). Nation: USA. Agency: USAF. Class: Communications. Type: Military communications satellite. Spacecraft: IDCSP. USAF Sat Cat: 2865 . COSPAR: 1967-066D. Apogee: 33,560 km (20,850 mi). Perigee: 33,145 km (20,595 mi). Inclination: 11.9000 deg. Period: 1,313.50 min. Summary: Antenna tests. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

1968 June 13 - . 14:03 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC41. LV Family: Titan. Launch Vehicle: Titan 3C. LV Configuration: Titan IIIC 3C-16.
  • IDCSP 4-1 - . Payload: IDCSP 20 / OPS 9341. Mass: 45 kg (99 lb). Nation: USA. Agency: USAF. Class: Communications. Type: Military communications satellite. Spacecraft: IDCSP. USAF Sat Cat: 3284 . COSPAR: 1968-050A. Apogee: 33,850 km (21,030 mi). Perigee: 33,725 km (20,955 mi). Inclination: 11.9000 deg. Period: 1,335.20 min. Summary: Space craft engaged in investigation of spaceflight techniques and technology (US Cat A)..
  • IDCSP 4-5 - . Payload: IDCSP 24 / OPS 9345. Mass: 45 kg (99 lb). Nation: USA. Agency: USAF. Class: Communications. Type: Military communications satellite. Spacecraft: IDCSP. USAF Sat Cat: 3288 . COSPAR: 1968-050E. Apogee: 34,035 km (21,148 mi). Perigee: 33,721 km (20,953 mi). Inclination: 7.4000 deg. Period: 1,339.60 min. Summary: Space craft engaged in investigation of spaceflight techniques and technology (US Cat A)..
  • IDCSP 4-4 - . Payload: IDCSP 23 / OPS 9344. Mass: 45 kg (99 lb). Nation: USA. Agency: USAF. Class: Communications. Type: Military communications satellite. Spacecraft: IDCSP. USAF Sat Cat: 3287 . COSPAR: 1968-050D. Apogee: 33,939 km (21,088 mi). Perigee: 33,743 km (20,966 mi). Inclination: 9.2000 deg. Period: 1,337.90 min. Summary: Space craft engaged in investigation of spaceflight techniques and technology (US Cat A)..
  • IDCSP 4-3 - . Payload: IDCSP 22 / OPS 9343. Mass: 45 kg (99 lb). Nation: USA. Agency: USAF. Class: Communications. Type: Military communications satellite. Spacecraft: IDCSP. USAF Sat Cat: 3286 . COSPAR: 1968-050C. Apogee: 33,901 km (21,065 mi). Perigee: 33,722 km (20,953 mi). Inclination: 9.4000 deg. Period: 1,336.40 min. Summary: Space craft engaged in investigation of spaceflight techniques and technology (US Cat A)..
  • IDCSP 4-2 - . Payload: IDCSP 21 / OPS 9342. Mass: 45 kg (99 lb). Nation: USA. Agency: USAF. Class: Communications. Type: Military communications satellite. Spacecraft: IDCSP. USAF Sat Cat: 3285 . COSPAR: 1968-050B. Apogee: 33,863 km (21,041 mi). Perigee: 33,724 km (20,955 mi). Inclination: 7.4000 deg. Period: 1,335.50 min. Summary: Space craft engaged in investigation of spaceflight techniques and technology (US Cat A)..
  • IDCSP 4-6 - . Payload: IDCSP 25 / OPS 9346. Mass: 45 kg (99 lb). Nation: USA. Agency: USAF. Class: Communications. Type: Military communications satellite. Spacecraft: IDCSP. USAF Sat Cat: 3289 . COSPAR: 1968-050F. Apogee: 34,118 km (21,199 mi). Perigee: 33,739 km (20,964 mi). Inclination: 9.4000 deg. Period: 1,342.20 min. Summary: Space craft engaged in investigation of spaceflight techniques and technology (US Cat A)..
  • IDCSP 4-7 - . Payload: IDCSP 26 / OPS 9347. Mass: 45 kg (99 lb). Nation: USA. Agency: USAF. Class: Communications. Type: Military communications satellite. Spacecraft: IDCSP. USAF Sat Cat: 3290 . COSPAR: 1968-050G. Apogee: 34,256 km (21,285 mi). Perigee: 33,721 km (20,953 mi). Inclination: 7.5000 deg. Period: 1,345.20 min. Summary: Space craft engaged in investigation of spaceflight techniques and technology (US Cat A)..
  • IDCSP 4-8 - . Payload: IDCSP 27 / OPS 9348. Mass: 45 kg (99 lb). Nation: USA. Agency: USAF. Class: Communications. Type: Military communications satellite. Spacecraft: IDCSP. USAF Sat Cat: 3291 . COSPAR: 1968-050H. Apogee: 34,442 km (21,401 mi). Perigee: 33,752 km (20,972 mi). Inclination: 7.7000 deg. Period: 1,350.60 min. Summary: Space craft engaged in investigation of spaceflight techniques and technology (US Cat A)..

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