A STUDY OF LUNAR PHYSICS BY THE LUNAR LASER RANGING DATA

Jin W.J., Li J.L.

Shanghai Observatory, Shanghai 200030, China

Information about the structure of lunar interior and evolution could be obtained from measurements of lunar free librations, gravitational field, dissipation etc. In this paper the precisions of determining free librations with the lunar laser ranging data are estimated. Using the observing data from four stations for eighteen years the amplitudes and phase of librations, moments of inertia etc. were obtained.