NASA NTRS · 19810040391
Precision orbit determination software validation experiment
Abstract
This paper presents the results of an experiment which was designed to ascertain the level of agreement between GEODYN and UTOPIA, two completely independent computer programs used for precision orbit determination, and to identify the sources which limit the agreement. For a limited set of models and a seven-day data set arc length, the altitude components of the ephemeris obtained by the two programs agree at the sub-centimeter level throughout the arc.
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Schutz, B. E., Tapley, B. D., Eanes, R. J., Marsh, J. G., Williamson, R. G., Martin, T. V.. 1980-12-01. Precision orbit determination software validation experiment. https://ntrs.nasa.gov/citations/19810040391
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