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Orbit determination of geosynchronous satellites by VLBI and differential VLBIFour approaches to radio interferometric tracking of geosynchronous satellites are analyzed and compared. Quasar-based differential very-long-baseline interferometry, which requires a very sensitive receiver, can achieve meter-level position accuracy with a two-baseline system. Satellite-based differential VLBI gives somewhat lower accuracy with a compact, inexpensive receiver. Nondifferential VLBI, using less precise media and clock calibrations obtained by observing the GPS satellites, still gives 5-10 m position accuracy with two baselines. For a sufficiently inclined orbit, all interferometric approaches can yield six-component satellite state from a single baseline.
Document ID
19820055345
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Yunck, T. P.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Wu, S. C.
(California Institute of Technology, Jet Propulsion Laboratory, Pasadena CA, United States)
Date Acquired
August 10, 2013
Publication Date
August 1, 1982
Subject Category
Space Communications, Spacecraft Communications, Command And Tracking
Report/Patent Number
AIAA PAPER 82-1446
Meeting Information
Meeting: Astrodynamics Conference
Location: San Diego, CA
Start Date: August 9, 1982
End Date: August 11, 1982
Sponsors: American Institute of Aeronautics and Astronautics and American Astronautical Society
Accession Number
82A38880
Funding Number(s)
CONTRACT_GRANT: NAS7-100
Distribution Limits
Public
Copyright
Other

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