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|Relay - |
Credit: NASA. 17,600 bytes. 216 x 379 pixels.
Class: Technology. Type: Communications. Nation: USA. Agency: NASA.
Relay was a communications satellite of the active repeater type, in which signals from one ground station were picked up and rebroadcast to another station by the satellite's internal equipment. A NASA project, Relay was a 78 kg, spin-stabilised spacecraft boosted by a Delta launch vehicle. The first Relay satellite was launched December 13, 1962, and it remained operational for more than 2 years. Relay 2, launched January 21, 1964, was used in thousands of tests and experiments and in some 40 public demonstrations through September 1965.
Total Mass: 78 kg.
13 December 1962
Relay 1 Launch Site: Cape Canaveral . Launch Vehicle: Delta B. Mass: 78 kg. Perigee: 1,319 km. Apogee: 7,440 km. Inclination: 47.5 deg.
Communications satellite technology tests. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).
21 January 1964
Relay 2 Launch Site: Cape Canaveral . Launch Vehicle: Delta B. Mass: 78 kg. Perigee: 1,961 km. Apogee: 7,540 km. Inclination: 46.4 deg.
Experimental commsat. Spacecraft engaged in practical applications and uses of space technology such as weather or communication (US Cat C).
- 2 - McDowell, Jonathan, The United Nations Registry of Space Objects, Harvard University, 1997. HTML when accessed: http://hea-www.harvard.edu/QEDT/jcm/space/un/un.html
- 6 - JPL Mission and Spacecraft Library, Jet Propulsion Laboratory, 1997. HTML when accessed: http://msl.jpl.nasa.gov/home.html
- 405 - Aerospace Yearbook, 1966, .
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Last update 12 March 2001.
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© Mark Wade, 2001 .