Details
-
Type:
Bug
-
Status: Done
-
Resolution: Done
-
Fix Version/s: None
-
Component/s: meas_algorithms
-
Labels:None
-
Story Points:1
-
Epic Link:
-
Sprint:AP F19-5 (October), AP F19-6 (November)
-
Team:Alert Production
Description
Siegfried Eggl just pointed out to me that the time epoch expressed in the gaia catalog are given in TCB, not UTC as I had thought. This results in a ~50s systematic offset of all of the epochs (all Gaia DR2 epochs are J2015.5). Although 50s probably doesn't matter for LSST parallax/PM calculations (which we're not doing yet anyway), it's easy enough to fix the ingest config and re-process the data. I can set that to run this weekend.
While I'm at it, I will correct the meas_algorithms "how to make a refcat" guide to have the updated config too.
Once it's generated and on lsst-dev, I'll have to re-request permission to copy it into place. Since the catalog is so new, I'll just overwrite the existing one entirely.
I did one run of singleFrameDriver on a COSMOS HSC-G tract. Output is here: /project/parejkoj/hscRerun/
DM-22027. As before, some of the exposures failed to get an astrometry fit, which is likely due to configuration changes that are necessary to work with gaia.Is this sufficient?