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Ultra rapid orbits for CHAMP atmosphere sounding

Authors

Reigber,  C.
External Organizations;

/persons/resource/koenigr

König,  Rolf
1.2 Global Geomonitoring and Gravity Field, 1.0 Geodesy and Remote Sensing, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

/persons/resource/tschmidt

Schmidt,  Torsten
1.1 GPS/GALILEO Earth Observation, 1.0 Geodesy and Remote Sensing, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

/persons/resource/wickert

Wickert,  Jens
1.1 GPS/GALILEO Earth Observation, 1.0 Geodesy and Remote Sensing, Departments, GFZ Publication Database, Deutsches GeoForschungsZentrum;

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Citation

Reigber, C., König, R., Schmidt, T., Wickert, J. (2002): Ultra rapid orbits for CHAMP atmosphere sounding, 27th General Assembly of the European Geophysical Society (EGS) (Nice 2002).


https://gfzpublic.gfz-potsdam.de/pubman/item/item_232001
Abstract
Fast delivery of CHAMP occultation data products to weather services for assimilation into numerical weather prediction models makes a very fast access to the CHAMP tracking and radio occultation raw data necessary as well as an ultra-rapid production of the GPS and CHAMP orbit ephemerides and the processing of atmospheric profiles. <BR>In the course of a special research programme of the German Helmholtz Association entitled GPS atmosphere sounding project (GASP) an S-band downlink station at Ny-Alesund in Spitzbergen has been established for accessing CHAMP science data every 100 minutes. With the low latency CHAMP GPS groundstation network, the fast orbit as well atmosphere processors being operated within the CHAMP Science Data System infrastructure, orbit and occultation products can be generated within a few hours. The presentation will describe the data flow and processing procedures and will provide results on achievable turn around times and quality of derived data products.