NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Collections About News Help Login
Back to Results
Lunar composition from Apollo orbital measurementsSeveral spectrometers carried in the Service Module of the Apollo 15 and Apollo 16 spacecraft were employed for the compositional mapping of the lunar surface. The observations involved the measurements of secondary (fluorescent) X-rays, gamma rays and alpha particle emissions. A large scale compositional map of over 20 percent of the lunar surface was obtained for the first time. It was possible to demonstrate interesting chemical differences between the mare and the highlands, to find specific areas of high radioactivity and to learn something about the composition of the moon's hidden side. Further the same devices were used to obtain useful astronomical data during the return to earth.
Document ID
19730002121
Acquisition Source
Legacy CDMS
Document Type
Technical Memorandum (TM)
Authors
Adler, I. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Trombka, J. I. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Yin, L. I. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Gorenstein, P. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Bjorkholm, P. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Gerald, J. (NASA Goddard Space Flight Center Greenbelt, MD, United States)
Date Acquired
September 2, 2013
Publication Date
September 1, 1972
Subject Category
Space Sciences
Report/Patent Number
X-641-72-351
NASA-TM-X-66068
Accession Number
73N10848
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Related Records

There are no records associated with this record.
No Preview Available