Low frequency VLBI in space using GAS-Can satellites: Report on the May 1987 JPL Workshop

Astronomy and Astrophysics – Astronomy

Scientific paper

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Aeronautical Engineering, Arrays, Get Away Specials (Sts), Low Frequencies, Satellite Networks, Very Long Base Interferometry, Angular Resolution, High Resolution, Sky Surveys (Astronomy)

Scientific paper

Summarized are the results of a workshop held at JPL on May 28 and 29, 1987, to study the feasibility of using small, very inexpensive spacecraft for a low-frequency radio interferometer array. Many technical aspects of a mission to produce high angular resolution images of the entire sky at frequencies from 2 to 20 MHz were discussed. The workshop conclusion was that such a mission was scientifically valuable and technically practical. A useful array could be based on six or more satellites no larger than those launched from Get-Away-Special canisters. The cost of each satellite could be $1-2M, and the mass less than 90 kg. Many details require further study, but as this report shows, there is good reason to proceed. No fundamental problems have been discovered involving the use of untraditional, very inexpensive spacecraft for this type of mission.

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