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DORIS satellite antenna maps derived from long-term residuals time seriesRecent studies have shown that phase pattern models for the Jason-1 GPS antenna significantly benefit GPS-based precise orbit determination (POD) for the satellite. We have used a similar technique to derive DORIS receiver antenna maps, using all available DORIS tracking data over long time periods (from 1993.0 to 2004.0). We demonstrate that the derived correction models are satellite specific. For a given satellite, year-to-year estimations show clear systematic patterns. Some of these systematic patterns are attributable to the derivative of the multi-path effects in the direction of the satellite velocity. For early SPOT data, the patterns can be explained by an offset in the TAI time tagging (typically 8 (mu)s). In a second step, we have applied the SPOT2 antenna correction models in precise orbit determination and in the positioning of ground beacons. Preliminary results on DORIS/SPOT2 show that application of the DORIS antenna maps lead to a slight improvement of the derived POD and geodetic results (typically less than 5%).
Document ID
20060043963
Acquisition Source
Jet Propulsion Laboratory
Document Type
Conference Paper
External Source(s)
Authors
Willis, Pascal R.
Desai, S. D.
Bertiger, W. I.
Haines, B. J.
Auriol, A.
Date Acquired
August 23, 2013
Publication Date
July 18, 2004
Subject Category
Communications And Radar
Meeting Information
Meeting: Committee on Space Research (COSPAR) 2004
Location: Paris
Country: France
Start Date: July 18, 2004
End Date: July 25, 2004
Distribution Limits
Public
Copyright
Other
Keywords
precise orbit determination (POD)
Doppler Orbitography and Radiopositioning Integrated by Satellite (DORIS)
antenna map
geodesy

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