10.5880/GFZ.1.1.2020.004 Männel, Benjamin Benjamin Männel 0000-0003-2938-1356 GFZ German Research Centre for Geosciences, Potsdam, Germany Brandt, Andre Andre Brandt GFZ German Research Centre for Geosciences, Potsdam, Germany Nischan, Thomas Thomas Nischan 0000-0001-5607-2298 GFZ German Research Centre for Geosciences, Potsdam, Germany Brack, Andreas Andreas Brack 0000-0001-8786-2217 GFZ German Research Centre for Geosciences, Potsdam, Germany Sakic, Pierre Pierre Sakic 0000-0003-1770-0532 GFZ German Research Centre for Geosciences, Potsdam, Germany Bradke, Markus Markus Bradke 0000-0003-1084-2909 GFZ German Research Centre for Geosciences, Potsdam, Germany GFZ Data Services 2020 International GNSS Service IGS IGS Analysis Center IAG satellite orbits earth rotation parameters Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation > GLONASS Earth Remote Sensing Instruments > Passive Remote Sensing > Positioning/Navigation > GPS EARTH SCIENCE > SOLID EARTH > GRAVITY/GRAVITATIONAL FIELD > SATELLITE ORBITS/REVOLUTION > ORBITAL POSITION Männel, Benjamin Benjamin Männel 0000-0003-2938-1356 GFZ German Research Centre for Geosciences, Potsdam, Germany Brandt, Andre Andre Brandt GFZ German Research Centre for Geosciences, Potsdam, Germany Nischan, Thomas Thomas Nischan 0000-0001-5607-2298 GFZ German Research Centre for Geosciences, Potsdam, Germany Brack, Andreas Andreas Brack 0000-0001-8786-2217 GFZ German Research Centre for Geosciences, Potsdam, Germany Sakic, Pierre Pierre Sakic 0000-0003-1770-0532 GFZ German Research Centre for Geosciences, Potsdam, Germany Bradke, Markus Markus Bradke 0000-0003-1084-2909 GFZ German Research Centre for Geosciences, Potsdam, Germany GFZ German Research Centre for Geosciences GFZ German Research Centre for Geosciences, Potsdam, Germany Männel, Benjamin GFZ German Research Centre for Geosciences, Potsdam, Germany Dataset https://files.igs.org/pub/center/analysis/gfz.acn https://files.igs.org/pub/data/format/sp3c.txt https://www.iers.org/IERS/EN/Organization/AnalysisCoordinator/SinexFormat/sinex.html https://lists.igs.org/pipermail/igsmail/1998/003315.html https://www.iers.org/IERS/EN/Publications/TechnicalNotes/tn36.htm https://files.igs.org/pub/data/format/rinex_clock302.txt https://isdc.gfz-potsdam.de/gnss-products/ 10.5880/GFZ.1.1.2020.001 10.5880/GFZ.1.1.2020.003 10.5880/GFZ.1.1.2020.002 http://acc.igs.org/repro3/Long_Product_Filenames_v1.0.pdf 1.1 CC BY 4.0 GFZ acts as a global analysis center of the International GNSS Service (IGS) and provides ultra-rapid (last 24h), rapid (last day), and final (last week) solutions for GPS, GLONASS and Galileo. The ultra-rapid solution series is published eight times per day with a delay of around three hours.

Based on a network of around 100 GNSS stations of the tracking network of the International GNSS Service, the GFZ analysis center generates sub-daily solutions using the latest development version of the EPOS.P8 Software. The solution series contains daily files (<YYYY><DDD> refers to the year and day of year of the first epoch contained in the files):

- satellite orbits (GFZ0OPSULT_<YYYY><DDD><HH00>_02D_15M_ORB.SP3.gz, data format: sp3: https://files.igs.org/pub/data/format/sp3c.txt),

- Earth rotation parameters (GFZ0OPSULT_<YYYY><DDD><HH00>_02D_01D_ERP.ERP.gz, data format: erp: https://lists.igs.org/pipermail/igsmail/1998/003315.html),

- summary file containing the detailed processing results (GFZ0OPSULT_<YYYY><DDD><HH00>_01D_01D_DSC.SUM).

The file naming follows the IGS Long Product Filename (http://acc.igs.org/repro3/Long_Product_Filenames_v1.0.pdf). All files are .gz compressed. The processing is described in detail in our Analysis Center Notes (https://files.igs.org/pub/center/analysis/gfz.acn) and follows the current geodetic conventions (https://www.iers.org/IERS/EN/Publications/TechnicalNotes/tn36.htm).
Version History

19 May 2021 (Version 1.1): inclusion of Galileo satellite system

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