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Geodynamics applications of spaceborne laser rangingThe Geodynamics Laser Ranging System (GLRS) is a spaceborne laser ranging instrument being developoed by NASA as a facility instrument for the Earth Observing System (EOS). GLRS is to be used to study regional and local crustal movements. It is designed to make highly precise range measurements to retroreflector targets located in geophysically interesting sites. Using a two-color ranging scheme, absolute range accuracies of several mm are expected. Simulations based on this accuracy and the EOS orbital parameters show that length of the intersite baseline between retroreflectors can be determined to several mm accuracy at distances from a few km to several hundred km with several passes of GLRS range data collected over a few-day interval. Short-arc techniques are used to minimize the effects of gravity field and other force model uncertainties. Relative heights can be determined to sub-cm accuracy over comparable distances.
Document ID
19900044948
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Cohen, Steven C.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Degnan, John J.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
August 14, 2013
Publication Date
January 1, 1989
Subject Category
Geophysics
Meeting Information
Meeting: Laser Applications in Meteorology and Earth and Atmospheric Remote Sensing
Location: Los Angeles, CA
Country: United States
Start Date: January 16, 1989
End Date: January 18, 1989
Accession Number
90A32003
Distribution Limits
Public
Copyright
Other

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