GPS Satellite Ephemerides (Orbits) / Satellite & Station Clocks
Orbit and Station and satellite clock products are found in the standard product directories, the orbits in files that end in *.sp3.Z and the clocks in files that end in *.clk.Z ;.
GLONASS Satellite Ephemerides
GLONASS Satellite Ephemerides can be at the following locations:
GNSS Broadcast ephemeris files
Can be found in each DC daily data directory, at CDDIS;
- https://cddis.gsfc.nasa.gov/archive/gnss/data/daily/YYYY/DDD/YYn/brdcDDD0.YY(n/g).Z (‘n’ for the RINEX2 merged GPS broadcast ephemeris file, and ‘g’ for the Glonass version)
- https://cddis.gsfc.nasa.gov/archive/gnss/data/daily/YYYY/DDD/YYp/BRDC00IGS_R_YYYYDDD0000_01D_MN.rnx.gz (for the RINEX3 merged GNSS broadcast ephemeris file)
- Additionally they can all be found in the yearly ‘brdc’ directories; htpps:://cddis.nasa.gov/pub/archive/gnss/daily/YYYY/brdc/
At IGN, and GSSC the RINEX 2 AND RINEX 3 broadcast ephemeris files can be found in the daily data directories with the same brdc and BRDC filenames as at CDDIS:
- ftp://igs.ensg.ign.fr/pub/igs/data/
- ftp://gssc.esa.int/gnss/data/daily/ or ftp://gssc.esa.int/gnss/data/daily/YYYY/brdc
At SIO the RINEX 2 broadcast ephemeris files can be found in the daily data directories with the name auto. For example Jan 1, 2018 would be ‘auto0010.18n.Z’. The broadcast ephemeris files can be found in the standard RINEX directory organized by year and day of year.
Geocentric Coordinates of IGS Tracking Stations
IGS Combined and Analysis Center Position products (positions and velocities) can be found in the standard product directories with filenames that end in *.snx.Z. The station positions and velocity files are stored in Solution Independent Exchange (SINEX) format.
Earth Rotation
All Earth Rotation products (Ultra-Rapid, Rapid, Final) can be found in the standard product directory having filenames that end in *.erp.Z ;
Atmospheric parameters
Final IGS station tropospheric zenith path delay with N, E gradients;
- https://cddis.gsfc.nasa.gov/archive/gnss/products/troposphere/zpd/
- ftp://igs.ensg.ign.fr/pub/igs/products/troposphere/
- ftp://gssc.esa.int/gnss/products/troposphere_zpd/
Final Analysis Center station tropospheric zenith path delay with N, E gradients can be found in the product directories having filenames that end in *.tro.Z ;
- https://cddis.gsfc.nasa.gov/archive/gnss/products/troposphere/sub/
- ftp://gssc.esa.int/gnss/products/
Rapid and Final ionospheric TEC grid;