出典:Wikipedia
出典:『Wikipedia』 (2011/04/30 17:49 UTC 版)
OSO 5 was the fifth satellite in the American Orbiting Solar Observatory (OSO) program which consisted of a series of nine NASA satellites primarily intended to study the Sun, though they also included important non-solar experiments. Launched January 22, 1969, OSO 5 decayed from orbit August 9, 1989.