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Image:Syncom1.jpg 200px Syncom I satellite Category:Spacecraft

Image:Syncom3.jpg 200px Syncom III satellite Category:Spacecraft

... in use at the time, which required expensive tracking computers. The first Syncom had failed to launch successfully, but Syncom 2 had reached its synchronous orbit on 26 July 1963. Later that ... that deliver video, voice, and data communications are all descendants of Syncom, and “when Harold Rosen and his colleagues launched Syncom, they launched a revolution and changed the world.(The Boeing Company ...

... Director of Communications Systems, reviewed launching and performance of SYNCOM I communications satellite before Senate Commerce Committee's Subcommittee on Communications. After SYNCOM was successfully launched by Delta vehicle, NASA God­dard Space Flight Center had determined apogee of SYNCOM's elliptical transfer orbit would occur at 21,700-mi. altitude, about 600-mi. short ...

... been unable to determine whether the satellite is damaged." Attempts to make contact with SYNCOM were continued. SYNCOM I was to have hovered at a nearly fixed longitude over the Atlantic Ocean ... of earth's rotation - to determine if synchronous orbital communications satellites were feasible. Experiments with SYNCOM were to have included telephone and teletype communications transmitted between New Jersey and Lagos Harbor ...

... ground station in Saigon, military communications experiments using SYNCOM II communications satellite began between Saigon and Hawaii. Limited experiments also were made with SYNCOM III , which was in a position to relay ... a virtually 24-hour basis. DOD had been experimenting with SYNCOM II for months-before installation of Saigon station, when SYNCOM II relayed messages between Manila and points in the U.S ...

... _65_19790076846_1979076846.pdf Apollo Monthly weight and balance report January 1965 Operation of SYNCOM II and SYNCOM III communications satellites was transferred to DOD by NASA, which had completed its R ... would provide NASA with certain telemetry and ranging data of continuing scientific and engineering interest. SYNCOM III was to prove useful in DOD's Vietnam communications. ''(NASA Release 65-5)'' About ...

... Islands, Hawaii, and Guam, Army would be responsible for earth communications facilities used with the Syncom satellites except for two shipboard terminals owned and operated by USN. Army's Strategic Communications Command would continue to man and operate all ground terminals, Syncom II -launched by NASA July 26, 1963-would be maintained at a position between 60 ...

... NASA had been struggling with institutional and funding arrangements for launching a Hughes-built comsat, Syncom-4 , without giving Hughes the unfair advantage of a free Space Shuttle launch. The problem ... open competition for systems to demonstrate Shuttle-launched communications spacecraft in the same manner as Syncom-4 . However, Frosch was concerned that in an open competition Hughes could be "competed out ...

... orbiting Space Shuttle s. (NY Times, Oct 3/ 85, A18, Oct 4/85, B5) The Syncom II communications satellite lost one of its 13 channels, described as an important wide-band ... and launched in April from the Space Shuttle Syncom Ill, which failed to fire in orbit. The Space Shuttle crew in July repaired Syncom III, with a reboost attempt scheduled for October. NASA launched in July from the Space Shuttle Syncom IV, but its communications failed in orbit. (D/D, Oct 3/85, 174) September 1985 ...

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