GNSS satellites as co-locations for a combined GNSS and SLR analysis

摘要

GNSS microwave data were analyzed together with SLR observations to GPS, CLONASS, LAGEOS and ETALON satellites for a time span of five years. The GNSS satellites are used for connecting GNSS microwave and SLR range data. Consistently estimated SLR-GNSS range biases, offsets for the satellite microwave antenna as well as for the laser reflector array are derived. Corrections to the official values of about 3.3 cm are obtained for the laser reflector array. The corrections for the microwave antenna differ between the GPS and GLONASS satellites and are in average about 2.5 cm and -14 cm, respectively.