Earth rotation from lunar laser ranging

Details Earth rotation from lunar laser ranging Earth rotation from lunar laser ranging

Dec 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981jgr....8611913l&link_type=abstract

Journal of Geophysical Research, vol. 86, Dec. 10, 1981, p. 11913-11918.

Astronomy and Astrophysics

Astronomy

6

Earth Rotation, Laser Range Finders, Lunar Rangefinding, Latitude, Satellite Observation, Temporal Resolution

Scientific paper

Since the time when the first laser retroreflector was placed on the lunar surface by the Apollo 11 astronauts, lunar laser ranging (LLR) has led to advances in a wide range of disciplines, including the study of variations in the rotation of the earth. The conventional techniques used to monitor earth rotation suffer from lack of precision on time scales of a few months and less. LLR, by contrast, makes it possible to monitor small changes in earth rotation with a temporal resolution of the order of 1 day. Studies of earth rotation by LLR are discussed, taking into account data sensitivity, aspects of data analysis, the variation of latitude, and UTO, the mean solar time at the site as affected by polar motion.

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