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Search indexed NASA NTRS and DOE OSTI research on propulsion, heat transfer, battery materials and energy systems. Follow report and document links to the original sources.
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Four scenarios of present day Antarctic ice sheet mass change are developed from comprehensive reviews of the available glaciological and oceanographic evidence. The gridded scenarios predict widely varying contributions to secular sea level change (xi)ranging from -1.1 to 0.45 mm/yr, and predict polar motion m(with dot above)and time-varying low-degree gravitational coefficients J 1 that differ significantly from earlier estimates.
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Explore the source record for details and available documents.
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Baker-nunn camera is used to determine satellite- orbit perturbations due to gravitational fields
Geomagnetic data reduction program, and World Data Center information interchange
Existing satellite in resonant orbits with earth longitudinal gravity field for future satellite geodesy
Gravity field determination computer program for Standard Earth calculation
External testing of satellite determinations of gravitational field variations, namely accelerations of 24-hr orbits, astrogeodetic geoid and spectrum from autocovariance analysis of gravity
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Station Cartesian coordinates in SAO systems using Geos 1
Geopotential surface measurement of ocean using altimeter data
Data analysis of GEOS 1 tracking network
Results derived from short arc, orbital solution of twelve stations, PAGEOS network
Design analysis of GEOS-C/ATS-F tracking experiment