NDLI: Satellite-tracking and earth dynamics research programs (Document No: 19820014420)

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Satellite-tracking and earth dynamics research programs (Document No: 19820014420)

Content Provider	NASA Technical Reports Server (NTRS)
Copyright Year	1982
Description	The activities carried out by the Smithsonian Astrophysical Observatory (SAO) are described. The SAO network continued to track LAGEOS at highest priority for polar motion and Earth rotation studies, and for other geophysical investigations, including crustal dynamics, Earth and ocean tides, and the general development of precision orbit determination. The network performed regular tracking of several other retroreflector satellites including GEOS-1, GEOS-3, BE-C, and Starlette for refined determinations of station coordinates and the Earth's gravity field and for studies of solid Earth dynamics. A major program in laser upgrading continued to improve ranging accuracy and data yield. This program includes an increase in pulse repetition rate from 8 ppm to 30 ppm, a reduction in laser pulse width from 6 nsec to 2 to 3 nsec, improvements in the photoreceiver and the electronics to improve daylight ranging, and an analog pulse detection system to improve range noise and accuracy. Data processing hardware and software are discussed.
File Size	8371789
Page Count	100
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19820014420
Archival Resource Key	ark:/13960/t8z942j5q
Language	English
Publisher Date	1982-04-01
Access Restriction	Open
Subject Keyword	Launch Vehicles And Space Vehicles Polar Wandering Geology Lageos Satellite Data Acquisition Earth Movements Geophysics Maintenance Minicomputers Earth Rotation Geophysical Observatories Accuracy Geophysical Satellites Earth Crust Upgrading Satellite Tracking Instrument Errors Geodynamics Laser Range Finders Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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