Abstract
The Gravity Recovery and Climate Experiment (GRACE) is a dedicated spaceborne mission to map the gravity field with unprecedented accuracy. It consists of two satellites co-orbiting in a nearly polar orbit, at approximately 300–500 km altitude, separated by 100–500 km along track. The satellites are to launch in 2001 with a lifetime of approximately 5 years. Primary measurements are the range change between the two satellites using a dual one-way microwave ranging system. These measurements are combined with accelerometer and GPS measurements. Accelerometer measurements are for estimating the non-gravitational acceleration effect on the range changes. The GPS measurements are used for providing satellite orbit and time-tag information.
For certain important error sources in these measurements, we describe the error simulation models. Effects of these error sources on gravity estimation are analyzed through a series of numerical simulations.
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© 2001 Springer-Verlag Berlin Heidelberg
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Kim, J.R., Roesset, P.J., Bettadpur, S.V., Tapley, B.D., Watkins, M.M. (2001). Error Analysis of the Gravity Recovery and Climate Experiment (GRACE) Mission. In: Sideris, M.G. (eds) Gravity, Geoid and Geodynamics 2000. International Association of Geodesy Symposia, vol 123. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-04827-6_17
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DOI: https://doi.org/10.1007/978-3-662-04827-6_17
Publisher Name: Springer, Berlin, Heidelberg
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