OSO 8 - .
Payload: OSO I. Mass: 1,066 kg (2,350 lb). Nation: USA.
Agency: NASA Greenbelt.
Class: Astronomy.
Type: Solar satellite. Spacecraft: OSO.
Decay Date: 1986-07-09 . USAF Sat Cat: 7970 . COSPAR: 1975-057A. Apogee: 553 km (343 mi). Perigee: 539 km (334 mi). Inclination: 32.90 deg. Period: 95.60 min. Orbiting Solar Observatory. Spacecraft engaged in research and exploration of the upper atmosphere or outer space (US Cat B). .