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Gravity Probe B orbit determination

delete2015-11-17
delete3
PRE
AI
S
Shestople, P. *
N
Ndili, A.
H
Hanuschak, G.
P
Parkinson, B. W.
S
Small, H.
DOI：10.1088/0264-9381/32/22/224017delete
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Abstract

Abstract

En 中文
The Gravity Probe B (GP-B) satellite was equipped with a pair of redundant Global Positioning System (GPS) receivers used to provide navigation solutions for real-time and post-processed orbit determination (OD), as well as to establish the relation between vehicle time and coordinated universal time. The receivers performed better than the real-time position requirement of 100 m rms per axis. Post-processed solutions indicated an rms position error of 2.5 m and an rms velocity error of 2.2 mm s(-1). Satellite laser ranging measurements provided independent verification of the GPS-derived GP-B orbit. We discuss the modifications and performance of the Trimble Advance Navigation System Vector III GPS receivers. Wedescribe the GP-B precision orbit and detail the OD methodology, including ephemeris errors and the laser ranging measurements.
Keywords:
Gravity Probe B
GPS
orbit determination
AI Summary

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Key information extracted from the uploaded paper, including a brief overview, abstract, background, key highlights, visual analysis, and future outlook.

Journal

Classical and Quantum Gravity cover
Classical and Quantum Gravity
IF:
3.7
Papers:
1.3W
Citations:
3.0W

Organization

S
Stanford University
Scholars:
9.6W
Papers: 8.2W
Citations: 17.0W
Cited Papers

Cited Papers

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