Astra 1B was the third of the Astra communications satellites launched and operated by SES (Société Européenne des Satellites). Arsene (Ariane Radio-Amateur Satellite Enseignement Espace) was designed and built by the French space agency CNES's radio amateur group (RACE) and carried a VHF/UHF and a UHF/S-band transponder.
Geostationary OrbitUS-PM (Upravlenniye Sputnik Passivny Modifikirovanny) (also reported as US-PU) was a solar powered improved EORSAT (Electronic Ocean Reconnaissance Satellite). It used an passive ELINT devices to track naval vessels from space by registering their electronic emmissions.
Low Earth OrbitSTS-55 (Space Transportation System 55), or D-2 was the 55th overall flight of the US Space Shuttle and the 14th flight of Shuttle Columbia. This flight was a multinational Spacelab flight involving 88 experiments from eleven different nations. The experiments ranged from biology sciences to simple earth observations.
Low Earth Orbit