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dorismail               25-Jan-2023 13:11:26 Message No 1349
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Author: Moreaux Guilhem <gmoreaux@groupcls.com>
Subject: IDS CC - DPOD2020 version 1.0



Dear IDS users,

The first version of the DORIS extension of ITRF2020 for Precise Orbit Dete=
rmination (DPOD2020) is available at the CDDIS and IGN IDS data centers.

The computation of the DPOD2020 solutions is similar to the one we used for=
 the DPOD2014. The DPOD2020 realizations are/will be deduced from DORIS pos=
ition and velocity cumulative solutions (aligned to the ITRF2020) based on =
the latest IDS weekly combined solution. After some preliminary validation =
tests by the IDS Combination Center, the DPOD2020 solution is validated by =
the POD validation group (F. Lemoine, A. Couhert, N. Zelensky and John Moya=
rd). Like the DPOD2014, the DPOD2020 solution will be updated two times a y=
ear and will be available in both SINEX and text formats.
To facilitate the use of the latest version of the DPOD2020, as we did for =
DPOD2014, we will put in the directory doris/products/dpod/ the two files d=
pod2020_current.snx.Z and dpod2020_current.txt.Z. These files will always c=
orrespond to the latest DPOD2020 solution (available in the subdirectory do=
ris/products/dpod/dpod2020/).

Note that until the IDS officially moves to the ITRF2020, the IDS Combinati=
on Center will continue to update the DPOD2014 so, the doris/products/dpod/=
 directories at CDDIS and IGN will still include updated versions of the dp=
od2014_current.snx.Z and dpod2014_current.txt.Z files. As soon as IDS will =
move to ITRF2020, these two files will be definitively removed.
If you have any question about the DPOD2020, do not hesitate to contact me.
Best regards.
G. Moreaux