Encyclopedia Astronautica
OV1



ov1.jpg
OV1
Credit: USAF
American earth magnetosphere satellite. 27 launches, 1965.01.21 (OV1-1) to 1971.08.07 (OV1-21P).

The OV1, originally called SATAR, was designed to carry a variety of scientific experiments into orbit in a special pod on the Atlas booster when the lift capability of the Atlas was not fully utilized by other experiments thus providing an economical satellite with "bonus" experiments. The OV1 had its own propulsion system which was fired after the satellite was ejected from the booster vehicle.

The OVl remained inside the Atlas-retained structure during the Atlas flight to protect it from aerodynamics loading and heating. The space vehicle coasted for about 8 minutes in space as pre-programmed attitude control maneuvers were performed on command of the propulsion module guidance system to position it for firing of its solid-fuelled motor. OV1 could be launched singly on the side of Atlas or in dual pods on the booster nose. Once in space, it could attain near-circular or highly elliptical earth orbits, high altitude probes or high velocity re-entry missions. Each OV1 could carry a 36 kg payload. Total mass on the Atlas was 1,113 kg for the dual pod load. The satellite was 1.40 m long and 0.68 m in diameter. Contracting agency was the USAF's Office of Aerospace Research. Prime Contractor was Convair Division of General Dynamics Corporation. Associate Contractor was Allegheny Ballistics Laboratory (propulsion system).

Gross mass: 555 kg (1,223 lb).
Payload: 36 kg (79 lb).
Height: 1.40 m (4.50 ft).
First Launch: 1965.01.21.
Last Launch: 1971.08.07.
Number: 27 .

More... - Chronology...


Associated Countries
See also
  • Atlas The Atlas rocket, originally developed as America's first ICBM, was the basis for most early American space exploration and was that country's most successful medium-lift commercial launch vehicle. It launched America's first astronaut into orbit; the first generations of spy satellites; the first lunar orbiters and landers; the first probes to Venus, Mars, Mercury, Jupiter, and Saturn; and was America's most successful commercial launcher of communications satellites. Its innovative stage-and-a-half and 'balloon tank' design provided the best dry-mass fraction of any launch vehicle ever built. It was retired in 2004 after 576 launches in a 47-year career. More...
  • 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
  • Atlas The Atlas rocket, originally developed as America's first ICBM, was the basis for most early American space exploration and was that country's most successful medium-lift commercial launch vehicle. It launched America's first astronaut into orbit; the first generations of spy satellites; the first lunar orbiters and landers; the first probes to Venus, Mars, Mercury, Jupiter, and Saturn; and was America's most successful commercial launcher of communications satellites. Its innovative stage-and-a-half and 'balloon tank' design provided the best dry-mass fraction of any launch vehicle ever built. It was retired in 2004 after 576 launches in a 47-year career. More...
  • 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...
  • Atlas D American intercontinental ballistic missile. Rocket used both as a space launcher and ICBM. More...
  • Atlas F American intercontinental ballistic missile. Final operational version of Atlas ICBM. Differed in guidance systems. Deployed as missiles from 1961 to 1966. After retirement, the ICBM's were refurbished and used for over thirty years as space launch vehicles. 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...
  • Convair American manufacturer of rockets, spacecraft, and rocket engines. Convair, 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.
  • Lockheed Martin Coporation, Atlas Family Fact Sheets, September 1998.. Web Address when accessed: here.
  • McDowell, Jonathan, Launch Log, October 1998. Web Address when accessed: here.
  • Aerospace Yearbook, 1966,

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...
  • Vandenberg Vandenberg Air Force Base is located on the Central Coast of California about 240 km northwest of Los Angeles. It is used for launches of unmanned government and commercial satellites into polar orbit and intercontinental ballistic missile test launches toward the Kwajalein Atoll. More...
  • Vandenberg 576B3 Atlas launch complex. Originally an Atlas 576 SMS ICBM pad. Upgraded for use as ABRES pad in 1965. More...
  • Vandenberg 576A2 Atlas launch complex. Originally an Atlas 576 SMS ICBM pad. Upgraded for use as ABRES re-entry vehicle test program pad in 1965, and for BMRS program in 1971. More...
  • Cape Canaveral LC40 Titan launch complex. Constructed as part of the Titan Integrate-Transfer-Launch (ITL) facility at the north end of Cape Canaveral in the early 1960s. Supported a wide variety of military space missions involving Titan IIIC, Titan 34D and Titan IV vehicles. More...

OV1 Chronology


1965 January 21 - . 21:34 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg 576B3. LV Family: Atlas. Launch Vehicle: Atlas D. LV Configuration: Atlas D 172D. FAILURE: Failure. Failed Stage: 1.
  • OV1-01 - . Payload: ABRES MTV-1. Mass: 85 kg (187 lb). Nation: USA. Agency: USAF. Class: Earth. Type: Magnetosphere satellite. Spacecraft: OV1. Decay Date: 1965-01-21 . COSPAR: F650121A. Summary: Failure..
  • OV1-1 - . Payload: OV1-1. Nation: USA. Agency: USAF SAC. Spacecraft: OV1. COSPAR: F650121B.

1965 May 28 - . 02:54 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg 576B3. LV Family: Atlas. Launch Vehicle: Atlas D. LV Configuration: Atlas D 68D / OV-1. FAILURE: Failure.. Failed Stage: 1.
  • OV1-03 - . Nation: USA. Agency: USAF AFSC. Class: Earth. Type: Magnetosphere satellite. Spacecraft: OV1. Decay Date: 1965-05-28 . COSPAR: F650528A.

1965 October 5 - . 09:07 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg 576B3. LV Family: Atlas. Launch Vehicle: Atlas D. LV Configuration: Atlas D 34D NB20.170 RS.
  • OV1-02 - . Payload: OV1 Dummy. Mass: 86 kg (189 lb). Nation: USA. Agency: USAF OAR. Class: Earth. Type: Magnetosphere satellite. Spacecraft: OV1. USAF Sat Cat: 1613 . COSPAR: 1965-078A. Apogee: 2,735 km (1,699 mi). Perigee: 408 km (253 mi). Inclination: 144.2000 deg. Period: 117.60 min. Summary: Radiation data. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .
  • NB20.170 - . Payload: SPP 29. Nation: USA. Agency: USAF AFSC. Spacecraft: OV1. USAF Sat Cat: 1613 . COSPAR: 1965-078xx. Apogee: 2,418 km (1,502 mi). Perigee: 401 km (249 mi). Inclination: 144.2000 deg. Period: 114.00 min.
  • OV1-02S - . Nation: USA. Agency: USAF AFSC. Class: Earth. Type: Magnetosphere satellite. Spacecraft: OV1. USAF Sat Cat: 1613 . COSPAR: 1965-078xx. Apogee: 2,418 km (1,502 mi). Perigee: 401 km (249 mi). Inclination: 144.2000 deg. Period: 114.00 min.

1966 March 30 - . 09:20 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg 576B3. LV Family: Atlas. Launch Vehicle: Atlas D. LV Configuration: Atlas D 72D NB20.152 RS.
  • OV1-04 - . Mass: 88 kg (194 lb). Nation: USA. Agency: USAF OAR. Class: Earth. Type: Magnetosphere satellite. Spacecraft: OV1. USAF Sat Cat: 2121 . COSPAR: 1966-025A. Apogee: 1,008 km (626 mi). Perigee: 884 km (549 mi). Inclination: 144.5000 deg. Period: 104.00 min. Summary: Thermal control experiments. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .
  • OV1-04S - . Nation: USA. Agency: USAF AFSC. Class: Earth. Type: Magnetosphere satellite. Spacecraft: OV1. USAF Sat Cat: 2121 . COSPAR: 1966-025xx. Apogee: 1,002 km (622 mi). Perigee: 879 km (546 mi). Inclination: 144.5000 deg. Period: 103.80 min.
  • OV1-05S - . Payload: BORE. Mass: 114 kg (251 lb). Nation: USA. Agency: USAF OAR. Class: Earth. Type: Magnetosphere satellite. Spacecraft: OV1. USAF Sat Cat: 2122 . COSPAR: 1966-025B. Apogee: 1,056 km (656 mi). Perigee: 985 km (612 mi). Inclination: 144.6000 deg. Period: 105.60 min. Summary: Optical radiation test. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

1966 July 14 - . 02:10 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg 576B3. LV Family: Atlas. Launch Vehicle: Atlas D. LV Configuration: Atlas D 58D. FAILURE: Partial Failure.. Failed Stage: 1.
  • OV1-07 - . Payload: PasComSat. Mass: 10 kg (22 lb). Nation: USA. Agency: USAF OAR. Class: Earth. Type: Magnetosphere satellite. Spacecraft: OV1. Decay Date: 1978-01-04 . USAF Sat Cat: 2324 . COSPAR: 1966-063A. Apogee: 1,022 km (635 mi). Perigee: 985 km (612 mi). Inclination: 144.2000 deg. Period: 105.20 min. Summary: Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .
  • OV1-08 PasComSat - . Nation: USA. Agency: USAF AFSC. Class: Earth. Type: Magnetosphere satellite. Spacecraft: OV1. Decay Date: 1978-01-04 . USAF Sat Cat: 2324 . COSPAR: 1966-063xx. Apogee: 410 km (250 mi). Perigee: 393 km (244 mi). Inclination: 144.2000 deg. Period: 92.60 min.

1966 November 3 - . 13:50 GMT - . Launch Site: Cape Canaveral. Launch Complex: Cape Canaveral LC40. LV Family: Titan. Launch Vehicle: Titan 3C. LV Configuration: Titan IIIC 3C-9.
  • OV1-06S - . Mass: 202 kg (445 lb). Nation: USA. Agency: USAF. Class: Earth. Type: Magnetosphere satellite. Spacecraft: OV1. Decay Date: 1966-12-31 . USAF Sat Cat: 2527 . COSPAR: 1966-099C. Apogee: 290 km (180 mi). Perigee: 287 km (178 mi). Inclination: 32.8000 deg. Period: 90.30 min. Summary: Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

1966 December 11 - . 21:09 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg 576B3. LV Family: Atlas. Launch Vehicle: Atlas D. LV Configuration: Atlas D 89D / OV-1 (2x).
  • OV1-09 - . Mass: 230 kg (500 lb). Nation: USA. Agency: USAF OAR. Class: Earth. Type: Magnetosphere satellite. Spacecraft: OV1. USAF Sat Cat: 2610 . COSPAR: 1966-111A. Apogee: 4,582 km (2,847 mi). Perigee: 475 km (295 mi). Inclination: 99.1000 deg. Period: 139.40 min. Summary: Radiation bio-hazard experiments. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .
  • OV1-10 - . Mass: 130 kg (280 lb). Nation: USA. Agency: USAF OAR. Class: Earth. Type: Magnetosphere satellite. Spacecraft: OV1. Decay Date: 2002-11-30 . USAF Sat Cat: 2611 . COSPAR: 1966-111B. Apogee: 604 km (375 mi). Perigee: 541 km (336 mi). Inclination: 93.4000 deg. Period: 96.10 min. Summary: Radiation data. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

1967 July 27 - . 19:00 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg 576B3. LV Family: Atlas. Launch Vehicle: Atlas D. LV Configuration: Atlas D 92D. FAILURE: Partial Failure.. Failed Stage: 1.
  • OV1-08S - . Mass: 118 kg (260 lb). Nation: USA. Agency: USAF OAR. Class: Earth. Type: Magnetosphere satellite. Spacecraft: OV1. Decay Date: 1972-02-22 . USAF Sat Cat: 2893 . COSPAR: 1967-072A. Apogee: 557 km (346 mi). Perigee: 529 km (328 mi). Inclination: 101.6000 deg. Period: 95.50 min. Summary: Carried cosmic ray telescope. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .
  • OV1-11 - . Nation: USA. Agency: USAF AFSC. Spacecraft: OV1. Decay Date: 1972-02-22 . USAF Sat Cat: 2893 . COSPAR: 1967-072xx. Apogee: 146 km (90 mi). Perigee: 144 km (89 mi). Inclination: 101.7000 deg. Period: 87.40 min. Summary: OV-1 11 did not reach orbit..
  • OV1-12S - . Mass: 140 kg (300 lb). Nation: USA. Agency: USAF OAR. Class: Earth. Type: Magnetosphere satellite. Spacecraft: OV1. Decay Date: 1980-07-22 . USAF Sat Cat: 2901 . COSPAR: 1967-072D. Apogee: 579 km (359 mi). Perigee: 497 km (308 mi). Inclination: 101.7000 deg. Period: 95.40 min. Summary: Solar flare observations. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

1968 April 6 - . 09:59 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg 576A2. LV Family: Atlas. Launch Vehicle: Atlas F. LV Configuration: Atlas F 107F / OV-1 (2x).
  • OV1-13 - . Mass: 107 kg (235 lb). Nation: USA. Agency: USAF OAR. Class: Earth. Type: Magnetosphere satellite. Spacecraft: OV1. USAF Sat Cat: 3173 . COSPAR: 1968-026A. Apogee: 9,214 km (5,725 mi). Perigee: 587 km (364 mi). Inclination: 100.0000 deg. Period: 198.70 min. Summary: Radiation, engineering experiments. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .
  • OV1-14 - . Mass: 101 kg (222 lb). Nation: USA. Agency: USAF OAR. Class: Earth. Type: Magnetosphere satellite. Spacecraft: OV1. USAF Sat Cat: 3174 . COSPAR: 1968-026B. Apogee: 9,858 km (6,125 mi). Perigee: 568 km (352 mi). Inclination: 100.0000 deg. Period: 207.00 min. Summary: Radiation data. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

1968 July 11 - . 19:30 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg 576A2. LV Family: Atlas. Launch Vehicle: Atlas F. LV Configuration: Atlas F 75F / OV-1 (2x).
  • OV1-15S - . Payload: Spades. Mass: 470 kg (1,030 lb). Nation: USA. Agency: USAF OAR. Class: Earth. Type: Magnetosphere satellite. Spacecraft: OV1. Decay Date: 1968-11-06 . USAF Sat Cat: 3318 . COSPAR: 1968-059A. Apogee: 1,800 km (1,100 mi). Perigee: 153 km (95 mi). Inclination: 89.8000 deg. Period: 104.60 min. Summary: Studied relationship between atmospheric density and solar radiation. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .
  • OV1-16 Cannonball 1 - . Payload: Loads. Mass: 600 kg (1,320 lb). Nation: USA. Agency: USAF OAR. Class: Earth. Type: Magnetosphere satellite. Spacecraft: OV1. Decay Date: 1968-08-19 . USAF Sat Cat: 3319 . COSPAR: 1968-059B. Apogee: 556 km (345 mi). Perigee: 145 km (90 mi). Inclination: 89.8000 deg. Period: 91.50 min. Summary: Ionospheric drag tests. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

1969 March 18 - . 07:40 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg 576A2. LV Family: Atlas. Launch Vehicle: Atlas F. LV Configuration: Atlas F 104F / OV-1 (3x).
  • OV1-17S - . Mass: 142 kg (313 lb). Nation: USA. Agency: USAF OAR. Class: Earth. Type: Magnetosphere satellite. Spacecraft: OV1. Decay Date: 1970-03-05 . USAF Sat Cat: 3823 . COSPAR: 1969-025A. Apogee: 466 km (289 mi). Perigee: 400 km (240 mi). Inclination: 99.1000 deg. Period: 93.20 min. Summary: Solar radiation experiments. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .
  • OV1-17A Orbiscal 2 - . Payload: OV1-17P. Mass: 221 kg (487 lb). Nation: USA. Agency: USAF OAR. Class: Earth. Type: Magnetosphere satellite. Spacecraft: OV1. Decay Date: 1969-03-24 . USAF Sat Cat: 3826 . COSPAR: 1969-025D. Apogee: 309 km (192 mi). Perigee: 175 km (108 mi). Inclination: 99.1000 deg. Period: 89.40 min. Summary: Radio beacon mountedon OV17 propulsion module. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .
  • OV1-19S - . Mass: 124 kg (273 lb). Nation: USA. Agency: USAF OAR. Class: Earth. Type: Magnetosphere satellite. Spacecraft: OV1. USAF Sat Cat: 3825 . COSPAR: 1969-025C. Apogee: 5,551 km (3,449 mi). Perigee: 483 km (300 mi). Inclination: 104.8000 deg. Period: 151.10 min. Summary: Radiation experiments. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .
  • OV1-18S - . Mass: 125 kg (275 lb). Nation: USA. Agency: USAF OAR. Class: Earth. Type: Magnetosphere satellite. Spacecraft: OV1. Decay Date: 1972-08-27 . USAF Sat Cat: 3824 . COSPAR: 1969-025B. Apogee: 583 km (362 mi). Perigee: 466 km (289 mi). Inclination: 98.9000 deg. Period: 95.20 min. Summary: Ionospheric, radiation, electric field data. Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

1971 August 7 - . 00:11 GMT - . Launch Site: Vandenberg. Launch Complex: Vandenberg 576A2. LV Family: Atlas. Launch Vehicle: Atlas F. LV Configuration: Atlas F 76F / OV-1 (2x).
  • OV1-20P - . Mass: 70 kg (154 lb). Nation: USA. Agency: USAF STP. Class: Earth. Type: Magnetosphere satellite. Spacecraft: OV1. Decay Date: 1971-08-28 . USAF Sat Cat: 5394 . COSPAR: 1971-067A. Apogee: 1,932 km (1,200 mi). Perigee: 136 km (84 mi). Inclination: 92.0000 deg. Period: 105.90 min. Summary: Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .
  • OV1-21P - . Mass: 70 kg (154 lb). Nation: USA. Agency: USAF STP. Class: Earth. Type: Magnetosphere satellite. Spacecraft: OV1. USAF Sat Cat: 5397 . COSPAR: 1971-067B. Apogee: 896 km (556 mi). Perigee: 778 km (483 mi). Inclination: 87.6000 deg. Period: 101.70 min. Summary: Space craft engaged in investigation of spaceflight techniques and technology (US Cat A). .

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