Our products

Final GNSS products generated for IGS

grgwwww7.ERP : ERP (pole, UT1-UTC) solution for 1 week in IGS IERS ERP format
grgwwww7.SUM : Analysis summary for 1 week
grgwwww7.SNX : Weekly Normals Equations for EOP and Stations coordinates in SINEX format (before week 1702)
grgwwww[0-6].SNX : Daily Normals Equations for EOP and Stations coordinates in SINEX format (after week 1702)
grgwwwwn[0-6].SP3 : Daily GPS & GLONASS ephemeris/clock at 15-min intervals (extrated from grm files)
grmwwwwn[0-6].SP3 : Daily GPS, GLONASS & GALILEO ephemeris/clock at 15-min intervals
grgwwww[0-6].CLK / grmwwww[0-6].CLK: Daily GNSS ephemeris/clock at 30-sec intervals (see specifities of clk comment lines)

grgwwww7.WSB : Weekly updated Wide Lane Satellite Biases (ftp site direct acces) (*)

Our products are avalaible at the IGS Data Centers sites (**)
See IGS Central Bureau Web Site for format description & access to Data center and the reference guide "A guide to using international gnss service (IGS) products".

Examples:
Direct access to grg products for week 1632:
At IGN Data Center : ftp://igs.ensg.ign.fr/pub/igs/products/1632/
At KASI Data Center : ftp://nfs.kasi.re.kr/gps/products/1632/
At CDDIS Data Center : ftp://cddis.gsfc.nasa.gov/pub/gps/products/1632/

Direct access to gr2 repro2 reprocessing products(*) (e.g. week 1632) :
At CDDIS Data Center : ftp://cddis.gsfc.nasa.gov/pub/gps/products/1632/repro2

Direct access to grm products (Galileo) for week 1700 :
At IGN Data Center : ftp://igs.ensg.ign.fr/pub/igs/products/mgex/1700/

Products quality evaluation and comparisons between ACs are available on the weelkly IGS-reports and dedicated websites for IGS finals and for MGEX.

For direct use of grg products using Gins software please contact us at igs-ac@cls.fr.

(*) For Integer-PPP, it is better to use before 28/12/2013 the recent gr2 products available at: ftp://cddis.gsfc.nasa.gov/pub/gps/products/wwww/repro2 and after the 28/12/2013, the routine ‘grg’ products available at ftp://cddis.gsfc.nasa.gov/pub/gps/products/wwww. Note that the orbits and clocks files are to be used together, i.e for example gr2wwwwd.clk.Z together with gr2wwwwd.sp3.Z, because some radial orbit deficiencies/differences are compensated in the clocks. Mixing two integer-products (for example grg-orbit and gr2-clocks) is not recommended.

(**) Some grg/grm products have been updated after initial delivery to the IGS. They are available here.