5:45 PM - 6:00 PM
[G07-2-06] Benefits for GGOS from SLR tracking of GLONASS, Galileo, BeiDou, and QZSS satellites
We will present a solution in which the GNSS orbits, SLR station coordinates, geocenter coordinates, and ERPs are determined using the SLR observations to 26 GLONASS, 14 Galileo, 2 BeiDou IGSO, 2 BeiDou MEO, and 1 QZSS satellite. We compare the SLR station coordinate stability derived from GNSS-based results to the LAGEOS-only solution and from a combined 'SLR to GNSS+LAGEOS' solution. We compare as well the SLR-derived GNSS orbits to the microwave-derived results. We found that the coordinate stability of those SLR stations which provide a large number of SLR observations of GNSS s/c can remarkably be improved. The Length-of-day parameter can be derived from SLR-GNSS solutions with a much better accuracy than from the LAGEOS-only solutions. The benefits for ITRF of SLR tracking of GNSS satellites are much greater than the SLR tracking of two Etalons. Eventually, we show that the SLR tracking of GNSS satellites improves the consistency between SLR and GNSS solutions, which is fundamental for fulfilling the GGOS goals.