DORIS data processing with Bernese GPS Software at Geodesy Observatory Pecný: tests, initial results and future prospects
Mr Petr TĚPÁNEK(1), Dr Urs HUGENTOBLER(2), Dr Karine LE BAIL(3)
(1) Geodesy Observatory Pecný, Research Institute of Geodesy, Topography and Cartography, Ondřejov, Czech republic
Session theme: Other topics: analysis strategies
In a cooperation of the AIUB (Astronomical Institute, University of Bern), the GOPE (Geodetic Observatory Pecný) and the IGN (Institut Géographique National) DORIS data analysis capabilities were implemented into a development version of the Bernese GPS Software. The DORIS observables are reformulated such that they resemble GNSS phase observations as much as possible allowing to use the same observation models and algorithms as for GNSS phase data analysis with only minor modifications. The same algorithm may be used to process DORIS phase observations. A reduced dynamic orbit model was adopted allowing to take non conservative forces into account by empirical and stochastic parameters. First results from the analysis of three weeks of data at GOPE are promising and are presented here. The presentation focuses on the weakly constrained network solutions and on the comparison of estimated station and pole coordinates to corresponding results from analysis centers of International DORIS Service, to ITRF 2000 coordinates, and to IERS C04 Earth orientation parameters as well. First results from the analysis of three weeks of data at GOPE are promising. An automatic analysis procedure is under development at GOPE and routine DORIS data processing is planed in the near future.
Research Institute of Geodesy, Topography and Cartography, Geodesy Observatory Pecný
Ondřejov 224, district Prague-east