Hispasat 1A and B were the first two satellites in the national system operated by the Spanish satellite communications operator Hispasat, for a dual civil/military mission, offering services to telecommunications operators and radio broadcasting both in Europe and North Africa and America. Hispasat 1A was launched in September 1992, and Hispasat 1B in July 1993. From its orbital position of 30 degrees West above the Atlantic and close to the Brazilian coast, this was the first European satellite system to provide transatlantic capacity, simultaneously covering all the Latin American countries and the United States, areas that have a great deal in common both culturally and linguistically.
Geostationary OrbitDSCS-3 (Defense Satellite Communications System 3) are geostationary communications satellites, which provide a robust anti-jam, nuclear hardened capability that supports Department of Defense (DoD) worldwide requirements, White House and Diplomatic communications. They are the follow-on generation of the DSCS-2 satellites.
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 Orbit