LP MOON SPACECRAFT ATTITUDE V1.0

The Lunar Prospector attitude data set consists of values for the spacecraft spin rate and spin axis orientation (attitude) as a function of time. These values are determined from spacecraft attitude data (sun and limb crossing sensors) and ephemeris data. Spacecraft orientations are given as right ascension and declination of the spacecraft spin axis in the Mean-of-J2000 Ecliptic reference frame. The attitude data set consists of a single, cumulative file for the entire mission. Records are added to this file following each significant change in either the spin rate or spin axis orientation. The spacecraft spin rates and attitudes in this data set are orbit averages. The instantaneous spin rate can be determined from the sun pulse data set. The instantaneous spin rate varies as the spacecraft passes into and out of the Moon's shadow and after each spacecraft maneuver. Generally, an attitude record is included for times immediately before and after each maneuver.