Abstract
We report results of the ground tests for Relay Satellite Transponder (RSAT) and Differential VLBI Radio Source (VRAD) for selenodesy on SELENE. Release properties of SELENE sub-satellites; Rstar/Vstar were measured by the ground tests, which have been confirmed by the on-orbit display on Micro-Lab Sat. Attitude analysis for the sub-satellites and beam pattern measurements for antennas shows that these mission instruments will provide the lunar gravity mapping with highly accurate full coverage.