Accession Number : ADA054276

Title :   Earth Rotation From Lunar Distances.

Descriptive Note : Final rept. 1 Mar 76-28 Feb 78,

Corporate Author : MCDONALD OBSERVATORY AUSTIN TEX

Personal Author(s) : Mulholland,J. Derral

Report Date : APR 1978

Pagination or Media Count : 14

Abstract : A mathematical description of the orientation of the Earth's surface in space is conventionally broken into several distinct components: the precession and nutation of the Earth's angular momentum vector in inertial space, the motion of the instantaneous rotation axis of the crust relative to the angular momentum vector, the motion of the Earth's crust relative to the instantaneous rotation axis (or as one more commonly describes the polar motion, the motion of the axis with respect to the crust), and the instantaneous speed of rotation of the crust.

Descriptors :   *EARTH MOVEMENTS, *ROTATION, *MOON, *ASTROPHYSICS, COMPUTER PROGRAMS, MATHEMATICAL ANALYSIS, AXES, EARTH CRUST, ASTRONOMY, ANGULAR MOMENTUM, OBSERVATORIES, PRECESSION.

Subject Categories : ASTRONOMY
      ASTROPHYSICS

Distribution Statement : APPROVED FOR PUBLIC RELEASE

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