The Starlette satellite was launched by the French Centre National d'Etudes Spatiales in 1975. The primary objective of this project was to further knowledge of the ''solid'' earth and ocean tides and other long-period gravitational perturbations. In the present study, Starlette laser ranging data for 1980 have been analyzed to map the tidal response of the earth to about 0.01 in the effective solid earth Love number k2. These results are based upon the solution of normal equations by processing the laser ranging data in 5-day orbital arc segments. The resonant response near the K1 tidal frequency is clearly shown. This is mostly due to the nonrigid body character of the earth's internal structure and is the expected type of response considering modern earth models. If we assume the Wahr free space potential for the solid earth tidal response, the recovered values for the K1, O1, M2, S2, and Mf ocean tidal coefficients are in good agreement with those of the conventional nonsatellite techniques, Schwiderski and Parke, and with those derived from period orbital evolution studies. |