The CODE MGEX orbit and clock solution

Prange, Lars; Dach, Rolf; Lutz, Simon; Schaer, Stefan; Jäggi, Adrian (2015). The CODE MGEX orbit and clock solution. In: Rizos, Chris; Willis, Pascal (eds.) IAG 150 Years. International Association of Geodesy Symposia: Vol. 143 (pp. 767-773). Springer 10.1007/1345_2015_161

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The Center for Orbit Determination in Europe (CODE) is contributing as a global Analysis center to the International GNSS Service (IGS) since many years. The processing of GPS and GLONASS data is well established in CODE’s ultra-rapid, rapid, and final product lines. With the introduction of new signals for the established and new GNSS, new challenges and opportunities are arising for the GNSS data management and processing. The IGS started the Multi-GNSS-EXperiment (MGEX) in 2012 in order to gain first experience with the new data formats and to develop new strategies for making optimal use of these additional measurements. CODE has started to contribute to IGS MGEX with a consistent, rigorously combined triple-system orbit solution (GPS, GLONASS, and Galileo). SLR residuals for the computed Galileo satellite orbits are of the order of 10 cm. Furthermore CODE established a GPS and Galileo clock solution. A quality assessment shows that these experimental orbit and clock products allow even a Galileo-only precise point positioning (PPP) with accuracies on the decimeter- (static PPP) to meter-level (kinematic PPP) for
selected stations.

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