****************************************************************************** dorismail 30-Jul-2025 15:35:30 Message No 1445 ****************************************************************************** Author: Soudarin Laurent Subject: Jason-3, Sentinel-3A, Sentinel-3B, Sentinel-6A CNES POE-G orbits Dear Colleagues, Following the DORISmail 1433 (Alexandre Couhert), here is the current stat= us regarding the delivery of the orbits in POE-G standard: - POE orbits are now determined with POE-G standards for Jason3, Sentinel-3= A, Sentinel-3B and Sentinel-6A POE-G files are identified by the version number VV=3D30 in the file name - Complete reprocessing according to POE-G standards was delivered in April= for Sentinel-6A, and today for Sentinel-3A and Sentinel-3B. For these missions, POE-F series (marked with version number 20) have been = moved to separate directories (./POE-F) Reprocessing for Jason-3 will be provided later this year. The files are available at IDS Data Centers: CDDIS: https://cddis.nasa.gov/archive/doris/products/orbits/ssa/ IGN: ftp://doris.ign.fr/pub/doris/products/orbits/ssa/ Best regards, IDS Central Bureau De : Couhert Alexandre Envoy=E9 : vendredi 7 mars 2025 17:46 =C0 : dorismail Objet : [DORISMail] No 1433 : Jason-3 CNES POE-G orbit standards Dear colleagues, The first Jason-3 precise orbits (cycle 500) in the new POE-G standards (previously POE-F standards) were delivered last Monday and will soon be available in sp3 to the CDDIS/IGN data servers. They are flagged with the version number VV=3D30 in the file name. We use this opportunity to update the header of our sp3 files accordingly, /* PCV:IGS20 /* OL/AL/SS:FES2014b NONE ITRF2020 YNY ORB:CoM CLK:CoM /* /* to clarify the handling of geocenter motion, as discussed within the Copern= icus Quality Working group. See attached for details. As you will see, we also extended with one digit the precision of the position/velocity delivered in the sp3 format (e.g., moving to f14.7 in 'P' and 'V' blocks). Sentinel-6 MF POE orbits will switch to the POE-G standards in April, as well as Sentinel-3A/B. A summary of the changes between the previous POE-F and the new POE-G POD standards can be found on the OSTST web site in John Moyard's presentation https://doi.org/10.24400/527896/a03-2023.3863 and https://ids-doris.org/documents/BC/data/POD_configuration_POEG.pdf Best regards, CNES POD Team