Encyclopedia Astronautica
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OAO
OAO
Orbiting Astronomical Observatory
Credit: NASA |
American visible astronomy satellite.
AKA: Orbiting Astronomical Observatory. Status: Operational 1966. First Launch: 1966-04-08. Last Launch: 1972-08-21. Number: 4 . Gross mass: 2,027 kg (4,468 lb).
Family: Astronomy,
Medium earth orbit,
Visible astronomy satellite.
Country: USA.
Launch Vehicles: Atlas,
Atlas SLV-3 Agena D,
Atlas SLV-3C Centaur.
Launch Sites: Cape Canaveral,
Cape Canaveral LC12,
Cape Canaveral LC36B.
Agency: NASA.
More at: 11551,
12893,
12894,
12895,
12896.
Bibliography: 126,
2,
278,
3984,
3985,
3986,
6.
Photo Gallery
 | OAO 1
Credit: Manufacturer Image |
 | OAO 2
Credit: Manufacturer Image |
 | OAO 3
Credit: Manufacturer Image |
 | OAO-B
Credit: Manufacturer Image |
1966 April 8 - .
19:35 GMT - .
Launch Site: Cape Canaveral.
Launch Complex: Cape Canaveral LC12.
LV Family: Atlas.
Launch Vehicle: Atlas SLV-3 Agena D.
- OAO 1 - .
Payload: OAO A1. Mass: 1,774 kg (3,911 lb). Nation: USA.
Agency: NASA Greenbelt.
Class: Astronomy.
Type: X-ray astronomy satellite. Spacecraft Bus: OAO.
Spacecraft: OAO.
USAF Sat Cat: 2142 . COSPAR: 1966-031A. Apogee: 793 km (492 mi). Perigee: 783 km (486 mi). Inclination: 35.0000 deg. Period: 100.60 min. Orbiting Astronomical Observatory. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). .
1968 December 7 - .
08:40 GMT - .
Launch Site: Cape Canaveral.
Launch Complex: Cape Canaveral LC36B.
LV Family: Atlas.
Launch Vehicle: Atlas SLV-3C Centaur.
- OAO 2 - .
Payload: OAO A2. Mass: 2,012 kg (4,435 lb). Nation: USA.
Agency: NASA Greenbelt.
Class: Astronomy.
Type: X-ray astronomy satellite. Spacecraft Bus: OAO.
Spacecraft: OAO.
USAF Sat Cat: 3597 . COSPAR: 1968-110A. Apogee: 758 km (470 mi). Perigee: 749 km (465 mi). Inclination: 35.0000 deg. Period: 99.90 min.
Orbiting Astronomical Observatory; carried 11 telescopes; performed X-ray, UV, IR observations of stars. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). Launch vehicle put payload into geosynchronous transfer orbit
1970 November 30 - .
22:40 GMT - .
Launch Site: Cape Canaveral.
Launch Complex: Cape Canaveral LC36B.
LV Family: Atlas.
Launch Vehicle: Atlas SLV-3C Centaur.
FAILURE: Shroud failed to separate.. Failed Stage: S. - OAO-B - .
Payload: OAO B. Mass: 2,121 kg (4,676 lb). Nation: USA.
Agency: NASA.
Class: Astronomy.
Type: X-ray astronomy satellite. Spacecraft Bus: OAO.
Spacecraft: OAO.
Decay Date: 1970-11-30 . COSPAR: F701130A. Orbiting Astronomical Observatory. Launch vehicle was to have put payload into geosynchronous transfer orbit.
1972 August 21 - .
10:28 GMT - .
Launch Site: Cape Canaveral.
Launch Complex: Cape Canaveral LC36B.
LV Family: Atlas.
Launch Vehicle: Atlas SLV-3C Centaur.
- OAO 3 - .
Payload: OAO-C. Mass: 2,204 kg (4,858 lb). Nation: USA.
Agency: NASA Greenbelt.
Class: Astronomy.
Type: X-ray astronomy satellite. Spacecraft Bus: OAO.
Spacecraft: OAO.
USAF Sat Cat: 6153 . COSPAR: 1972-065A. Apogee: 724 km (449 mi). Perigee: 713 km (443 mi). Inclination: 35.0000 deg. Period: 99.20 min. UV observations of stellar objects. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). Launch vehicle put payload into geosynchronous transfer orbit.
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