Additional provider for DORIS satellites

[mgrutten]

I've been using your awesome library to extract sp3 for the DORIS satellites. It appears that the NASA CDDIS data source (for example SARAL) is several weeks behind. I don't know if I'm doing something wrong, or if this is standard practice.

Regardless, would it be possible to add an alternative data source for the DORIS sp3 data? The International DORIS Service suggests this as an alternative source: ftp://doris.ign.fr/pub/doris/products/orbits/ssa/.

[serg3y]

Me me me,

The FTP source appears to end with same file as CDDIS (at time of posting)
CDDIS: https://cddis.nasa.gov/archive/doris/products/orbits/ssa/srl/
ssasrl20.b22107.e22115.D__.sp3.001.Z 2022:05:19 20:00:07 453.16KB
FTP: ftp://doris.ign.fr/pub/doris/products/orbits/ssa/srl/
ssasrl20.b22107.e22115.D__.sp3.001.Z 05/19/2022 08:34PM 464,031

-Files are same (only compressed differently)
-CDDIS appears to have uploaded ~12hrs later then FTP (if time stamps are UTC)
-Last data point in file is 22-04-25, so 10 days late (best case)

[mgrutten]

That's really strange @serg3y ... when I posted (3 days ago) there were no uploads on CDDIS in May 2022, the last file in that folder was day 86-94. I don't believe those upload time-stamps.