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Apollo-Soyuz pamphlet no. 4: Gravitational fieldTwo Apollo Soyuz experiments designed to detect gravity anomalies from spacecraft motion are described. The geodynamics experiment (MA-128) measured large-scale gravity anomalies by detecting small accelerations of Apollo in the 222 km orbit, using Doppler tracking from the ATS-6 satellite. Experiment MA-089 measured 300 km anomalies on the earth's surface by detecting minute changes in the separation between Apollo and the docking module. Topics discussed in relation to these experiments include the Doppler effect, gravimeters, and the discovery of mascons on the moon.
Document ID
19780019207
Acquisition Source
Legacy CDMS
Document Type
Other - NASA Educational Publication (EP)
Authors
Page, L. W.
(NASA Headquarters Washington, DC United States)
From, T. P.
(NASA Headquarters Washington, DC United States)
Date Acquired
August 9, 2013
Publication Date
October 1, 1977
Subject Category
Astronautics (General)
Report/Patent Number
NASA-EP-136
Report Number: NASA-EP-136
Accession Number
78N27150
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
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