Orbiting Geophysical Observatory

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OGO 1
An OGO satellite with its instruments

The Orbiting Geophysical Observatory ( OGO ) is a series of six American earth satellites for geophysical investigations. The satellites weighed between 487 and 588 kg, were cuboid, had two solar cell arms and several antennas equipped with measuring instruments that were two to 90 meters long. Among other things, they investigated the solar wind , the sun's ultraviolet and X-ray radiation , particle radiation from intergalactic space, long-wave, radio-frequency radiation from galaxies, the frequency of meteorites, zodiacal light , the ionosphere , the high atmosphere, the Van Allen radiation belt and magnetic fields in interplanetary space and in the magnetosphere .

Surname begin Remarks
OGO 1 5th September 1964 Strongly eccentric orbit between 282 and 148,200 km with an orbit inclination of 31.2 °. Stayed in rotation (5 / min) so that only 14 of the 20 instruments could transmit data.
OGO 2 October 14, 1965 Orbit between 421 and 1511 km with an orbit inclination of 87.38 °. Faults occurred one day after the start, and after 10 days the satellite failed completely.
OGO 3 June 7, 1966 Strongly eccentric orbit between 270 and 122,000 km.
OGO 4 July 28, 1967 Orbit between 412 and 907 km.
OGO 5 4th March 1968 Strongly eccentric orbit between 291 and 146,900 km.
OGO 6 5th June 1969 Polar orbit between 384 and 1093 km.

source

  • Heinz Mielke: Lexicon of space travel. 6th edition, transpress VEB publishing house for transport, Berlin, 1980

Web links

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