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ANALYSIS OF ORBIT PROPAGATION AND RELATIVE POSITION ACCURACY OF SMALL SATELLITES FOR SAR INTERFEROMETRY.

De Florio, Sergio and Neff, Thomas and Zehetbauer, Tino (2005) ANALYSIS OF ORBIT PROPAGATION AND RELATIVE POSITION ACCURACY OF SMALL SATELLITES FOR SAR INTERFEROMETRY. 5th IAA Symposium on Small Satellites for Earth Observation, 2005-04-04 - 2005-04-08, Berlin, Germany. (Unpublished)

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Abstract

The accuracy of the orbit prediction has a remarkable impact on the operations of satel-lites: orbit maintenance, maneuver planning, data-take and data-download scheduling, etc. Especially for SAR-Interferometry missions the requirements to the prediction accuracy are enormous. Within this paper a new method will be presented to rise the prediction accuracy of commercial available orbit propagation tools. Combining the non-gravitational forces affecting the spacecraft, measured by mean of an accelerometer, an optimal modified drag coefficient can be calculated and implemented in the orbit propagation tool. The accuracy which can be reached with the presented method, after a propagation of 3 days, is about 10÷15 m RMS in cross-track and radial direction and about 100 m RMS in along-track direction.

Document Type:Conference or Workshop Item (Paper)
Title:ANALYSIS OF ORBIT PROPAGATION AND RELATIVE POSITION ACCURACY OF SMALL SATELLITES FOR SAR INTERFEROMETRY.
Authors:
AuthorsInstitution or Email of Authors
De Florio, SergioUNSPECIFIED
Neff, ThomasUNSPECIFIED
Zehetbauer, TinoUNSPECIFIED
Date:April 2005
Status:Unpublished
Keywords:Orbit prediction, SAR interferometry, drag coefficient, tool
Event Title:5th IAA Symposium on Small Satellites for Earth Observation
Event Location:Berlin, Germany
Event Type:international Conference
Event Dates:2005-04-04 - 2005-04-08
Organizer:IAA
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Space (old)
HGF - Program Themes:W - no assignement
DLR - Research area:Space
DLR - Program:W - no assignement
DLR - Research theme (Project):W -- no assignement (old)
Location: Oberpfaffenhofen
Institutes and Institutions:Microwaves and Radar Institute > Reconnaissance and Security
Deposited By: Sergio Florio
Deposited On:11 Jan 2006
Last Modified:12 Dec 2013 20:08

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