Lunar motion analysis

Abstract

This report covers activity under the subject grant during the second half of calendar year 1974. During this period, in addition to routine data identification and management activities relating to the McDonald Observatory lunar laser data, primary efforts were directed towards 1) improvements in the integration program, aimed at producing the zero-order comparison ephemeris for the "three-dimensional" analysis, and 2) an error modeling study, to estimate the accuracy with which a mobile lunar ranging facility can be located.