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VLBI Observations of ALSEP TransmittersThe technique of differential very-long-baseline inteferometry (VLBI) Apollo Lunar Surface Experiments Package was used to measure the relative positions of the (ALSEP) transmitters at the Apollo 12, 14, 15, 16, and 17 lunar landing sites with uncertainties less than 0.005 sec of the geocentric arc. These measurements yielded improved determinations of the selenodetic coordinates of the Apollo landing sites, and of the physical libration of the moon.
Document ID
19770026061
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Counselman, C. C. (Massachusetts Inst. of Tech. Cambridge, MA, United States)
Date Acquired
September 3, 2013
Publication Date
September 30, 1977
Subject Category
Astronomy
Report/Patent Number
NASA-CR-155039
Accession Number
77N33005
Funding Number(s)
CONTRACT_GRANT: NSG-7118
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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