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The Removal of Periodic Gravitational Perturbations from Mars Global Surveyor's Science Phasing Orbits Applied to the Study of the Martian ExosphereThe martian exosphere and upper atmosphere exert measurable drag on the Mars Global Surveyor (MGS) spacecraft. Using the Goddard Space Flight Center's GEODYN orbit determination software, the science phasing orbits (SPO) were analyzed to determine the atmospheric drag and hence, measure the average density near the orbits' perifocus (170-180 km altitude above high northern latitudes). Future work will include the gravity calibration and mapping periods as well. Additional information is contained in the original extended abstract.
Document ID
20000110478
Acquisition Source
Goddard Space Flight Center
Document Type
Conference Paper
Authors
Tracadas, P. W. (Massachusetts Inst. of Tech. Cambridge, MA United States)
Zuber, M. T. (Massachusetts Inst. of Tech. Cambridge, MA United States)
Lemoine, F. G. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Smith, D. E. (NASA Goddard Space Flight Center Greenbelt, MD United States)
Date Acquired
August 19, 2013
Publication Date
July 1, 1999
Publication Information
Publication: The Fifth International Conference on Mars
Subject Category
Lunar And Planetary Science And Exploration
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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