Orbiting Geophysical Observatory

Artist's concept of OGO 1
OGO 1 components

Orbiting Geophysical Observatory (OGO) Program[1] of NASA refers to the six satellites launched by the United States that were in use from September 1964 to 1972, designed to study the Earth's magnetosphere.[2] The satellites successfully studied the interactions between the Earth and the Sun, despite a number of technical problems. Each satellite had 20 to 25 instruments. OGO 1, OGO 3, and OGO 5 were in equatorial orbits; OGO 2, OGO 4, and OGO 6 were in lower polar orbits.[3]

OGO launch chronology

  • OGO 1 1964-054A NORAD ID: 00879 Launched: 4 September 1964 On-orbit dry mass: 487 kg (still in orbit) [4] [5]
  • OGO 2 1965-081A NORAD ID: 01620 Launched: 14 October 1965 On-orbit dry mass: 507 kg (decayed 17 September 1981)
  • OGO 3 1966-049A NORAD ID: 02195 Launched: 7 June 1966 On-orbit dry mass: 515 kg (decayed 14 September 1981)
  • OGO 4 1967-073A NORAD ID: 02895 Launched:28 July 1967 On-orbit dry mass: 562 kg (decayed 16 August 1972 )
  • OGO 5 1968-014A NORAD ID: 03138 Launched: 4 March 1968 On-orbit dry mass: 611 kg (decayed 2 July 2011)
  • OGO 6 1969-051A NORAD ID: 03986 Launched: 5 June 1969 On-orbit dry mass: 632 kg (decayed 12 October 1979)

Notes

  1. ↑ Jackson, J. E. and Vette, J. I. (1975) OGO Program Summary, NASA SP-7601
  2. ↑ "Scientific Satellite Set For Launching". Kentucky New Era. Hopkinsville, KY. Associated Press. September 4, 1964. p. 7. Retrieved December 6, 2010.
  3. ↑ "Orbiting Geophysical Observatory series satellites". NASA HEASARC.
  4. ↑ A. V. Balakrishnan, Advances in Communication Systems: Theory and Applications (Academic Press, 2014) p264
  5. ↑ "Giant Space Lab Orbited; Fails Tests", Chicago Tribune, September 5, 1964, p1

References

  • Hartt, Julian (December 26, 1960). "First 'Streetcar' Satellites To Be Built for NASA". Milwaukee Sentinel. Hearst Headline Service. p. 4M. Retrieved December 6, 2010.
  • "Space 'Streetcar'". The Modesto Bee. December 26, 1960. p. A13. Retrieved December 6, 2010.
  • "U.S. to Launch Giant Satellite". Spartanburg Herald-Journal. Associated Press. August 30, 1964. p. B8. Retrieved December 6, 2010.


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