Tracking-Station Coordinates from Geos 1 and Geos 2 Optical Flash Data

  1. Soren W. Henriksen,
  2. Armando Mancini and
  3. Bernard H. Chovitz
  1. James G. Marsh1,
  2. Bruce C. Douglas2 and
  3. Steven M. Klosko2

Published Online: 15 MAR 2013

DOI: 10.1029/GM015p0077

The Use of Artificial Satellites for Geodesy

The Use of Artificial Satellites for Geodesy

How to Cite

Marsh, J. G., Douglas, B. C. and Klosko, S. M. (2013) Tracking-Station Coordinates from Geos 1 and Geos 2 Optical Flash Data, in The Use of Artificial Satellites for Geodesy (eds S. W. Henriksen, A. Mancini and B. H. Chovitz), American Geophysical Union, Washington, D. C.. doi: 10.1029/GM015p0077

Author Information

  1. 1

    Goddard Space Flight Center, Greenbelt, Maryland 20771

  2. 2

    Wolf Research And Development Corporation, Riverdale, Maryland 20840

Publication History

  1. Published Online: 15 MAR 2013
  2. Published Print: 1 JAN 1972

ISBN Information

Print ISBN: 9780875900155

Online ISBN: 9781118663646

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Keywords:

  • Minitrack optical tracking system (MOTS);
  • North American datum;
  • Quantitative test;
  • Simmon's rule;
  • Space station

Summary

Center-of-mass coordinates for 28 NASA MOTS and SAO Baker-Nunn camera sites have been obtained, from optical flash data from Geos 1 (1965 89A) and Geos 2 (1968 002A). More than 25,000 observations in about 100 two-day arcs were used in dynamical solutions (SAO 1969 AGU gravity model). Comparison of results with local survey solutions and with solutions from deep-space vehicle tracking suggests accuracy (1σ) of about 2 meters in longitude and height and 5 meters in latitude. The relatively larger error in latitude arose from propagation of gravity-model error largely along the track of these high-inclination satellites. The results have also been compared with the solutions of the SAO 1969 standard earth for station coordinates on the North American datum. The solution of this paper is much closer to the survey results in chord length between stations. At the level of accuracy given above, the new coordinates can be regarded as uncorrelated with any particular gravity model or satellites.