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S-band transponder experimentThe purpose of this experiment was to measure the variations in the lunar gravitational field near the trajectory of orbiting space vehicles (the command and service module (CSM) and the small particles and fields subsatellites ejected from the Apollo 15 and 16 spacecraft). New information has been obtained from all Apollo orbiting spacecraft; however, this report shall be limited to the results from the Apollo 17 CSM and the Apollo 16 subsatellite. The data acquired are precise speed measurements of the orbiting spacecraft from which accelerations or gravity profiles may be inferred. Feature resolution is controlled by the spacecraft altitude and is almost a direct relationship (i.e., data taken from a 50-km altitude will resolve approximately a 50-km feature). Therefore, revolutions 3 to 12, when the CSM was in the low-altitude orbits, provided the clearest information.
Document ID
Acquisition Source
Legacy CDMS
Document Type
Sjogren, W. L.
(Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Wollenhaupt, W. R.
(NASA Johnson Space Center Pasadena, CA, United States)
Wimberly, R. N.
(Jet Propulsion Lab., California Inst. of Tech.)
Date Acquired
August 7, 2013
Publication Date
January 1, 1973
Publication Information
Publication: NASA. Johnson Space Center Apollo 17 Prelim. Sci. Rept.
Subject Category
Space Sciences
Accession Number
Distribution Limits
Work of the US Gov. Public Use Permitted.
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