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LAGEOS geodetic analysis-SL7.1Laser ranging measurements to the LAGEOS satellite from 1976 through 1989 are related via geodetic and orbital theories to a variety of geodetic and geodynamic parameters. The SL7.1 analyses are explained of this data set including the estimation process for geodetic parameters such as Earth's gravitational constant (GM), those describing the Earth's elasticity properties (Love numbers), and the temporally varying geodetic parameters such as Earth's orientation (polar motion and Delta UT1) and tracking site horizontal tectonic motions. Descriptions of the reference systems, tectonic models, and adopted geodetic constants are provided; these are the framework within which the SL7.1 solution takes place. Estimates of temporal variations in non-conservative force parameters are included in these SL7.1 analyses as well as parameters describing the orbital states at monthly epochs. This information is useful in further refining models used to describe close-Earth satellite behavior. Estimates of intersite motions and individual tracking site motions computed through the network adjustment scheme are given. Tabulations of tracking site eccentricities, data summaries, estimated monthly orbital and force model parameters, polar motion, Earth rotation, and tracking station coordinate results are also provided.
Document ID
19920002366
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Smith, D. E. (ST Systems Corp. Lanham, MD., United States)
Kolenkiewicz, R. (ST Systems Corp. Lanham, MD., United States)
Dunn, P. J. (ST Systems Corp. Lanham, MD., United States)
Klosko, S. M. (ST Systems Corp. Lanham, MD., United States)
Robbins, J. W. (ST Systems Corp. Lanham, MD., United States)
Torrence, M. H. (Maryland Univ. College Park., United States)
Williamson, R. G. (Maryland Univ. College Park., United States)
Pavlis, E. C. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Douglas, N. B. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Fricke, S. K. (RMS Technologies, Inc., Landover MD., United States)
Date Acquired
September 6, 2013
Publication Date
September 1, 1991
Subject Category
Geophysics
Report/Patent Number
NASA-TM-104549
REPT-91B00153
NAS 1.15:104549
Accession Number
92N11584
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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