International Telemetering Conference Proceedings / September 28-30, 1982 / Sheraton Harbor Island Hotel and Convention Center, San Diego, CaliforniaThe COMSAT family of companies is actively involved in the operation of the Intelsat, COMSAT General, and Satellite Business Systems (SBS) ground networks which currently control twenty-five communications satellites utilizing three control centers and thirteen ground stations with forty-five antennas. Satellites controlled include INTELSAT IV (7), INTELSAT IVA (5), INTELSAT V (4), COMSTAR (4), MARISAT (3), and SBS (2). COMSAT also operates a launch services network consisting of a COMSAT Launch Control Center and Intelsat ground stations, as required, to guide spacecraft to the proper orbit st...