Host: The Japanese Society for Planetary Sciences: Local Organizing Committee for 2006 Fall Meeting
We report the observation and operation plans for lunar gravity field mapping using SELENE small satellites: Relay Satellite (Rstar) and VRAD Satellite (Vstar). Rstar and Vstar have been enlightened mass by the reduction of batteries, abolishment of altitude and active attitude control system, and newly developed release mechanism. We, therefore, estimate the status of batteries, satellite altitude, and electric power using ranging rate data and proto-flight test data to improve the accuracy of gravimetry.