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C-band station coordinate determination for the GEOS-C altimeter calibration areaDynamical orbital techniques were employed to estimate the center-of-mass station coordinates of six C-band radars located in the designated primary GEOS-C radar altimeter calibration area. This work was performed in support of the planned GEOS-C mission (December, 1974 launch). The sites included Bermuda, Grand Turk, Antigua, Wallops Island (Virginia), and Merritt Island (Florida). Two sites were estimated independently at Wallops Island yielding better than 40 cm relative height recovery, with better than 10 cm and 1 m (relative) recovery for phi and gamma respectively. Error analysis and comparisons with other investigators indicate that better than 2 m relative recovery was achieved at all sites. The data used were exclusively that from the estimated sites and included 18 orbital arcs which were less than two orbital revolutions in length, having successive tracks over the area. The techniques employed here, given their independence of global tracking support, can be effectively employed to improve various geodetic datums by providing very long and accurate baselines. The C-band data taken on GEOS-C should be employed to improve such geodetic datums as the European-1950 using similar techniques.
Document ID
19740026653
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Krabill, W. B. (NASA Wallops Flight Center Wallops Island, VA, United States)
Klosko, S. M. (Wolf Research and Development Corp. Riverdale, Md., United States)
Date Acquired
September 3, 2013
Publication Date
October 1, 1974
Subject Category
Geophysics
Report/Patent Number
NASA-TM-X-69356
Accession Number
74N34766
Funding Number(s)
CONTRACT_GRANT: NAS6-2173
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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