From three (Very Long Baseline Interferometry) VLBI experiments carried out in 1977 and 1978, the distances between the antenna at Onsala (Sweden) and radio tel

Lunar laser ranging (LLR) observations made by the McDonald Observatory from 1970 through 1980 have been analyzed to estimate the variation of latitude and Univ

The M.I.T. Planetary Ephemeris Program has been used to perform simulated least squares estimates of geodetic and other parameters relevant to the analysis of l

Three distinct tasks were undertaken to advance the application of space techniques to the measurement of geodetic parameters: error analyses were performed to