All tiles observed on the night of 20240403 marked as unsure due to multiple problems/doubts about desisurveyops

[forero]

B7 morning dark

[forero]

[forero]

(masked) structure on petals 3 and 7

[forero]

unmasked pileup between petals 0 and 1?

[schlafly]

The story with what cameras got reset is confusing here. According to the log, R4, R6, R8. According to VCCDSEC, here's the history of restarting...
R1, R4: before 234079 (R1 first, R4 330 afterward, only this exposure)
R6: before 234091
Z8: before 234103
R6: before 234129
Given the correlation with the logged devices, and the fact that Z8 shows a weird dark, my inclination is to believe the VCCDSEC.

I only see issues in the sframes or sky redshifts for P8. I propose that we mark Z8 on 234105 as bad and reprocess.

The rest of this night looks good to me. The other mystery to unravel would be whether there is a potential issue with VCCDSEC recording the wrong thing, as the log indicated different devices got reset than what that records.

[schlafly]

@akremin , @abhi0395 , can you mark z8 on 234105 as bad and reprocess this exposure? Thanks!

[schlafly]

(note this is a split exposure with another observation on 20240406; tile 26690)

[abhi0395]

@schlafly I marked "a8" as bad for exposure 234771 (tile 26690, night 20240403) and re-processed that tile. As mentioned here, the current code can not fit standard stars without all 3 arms/cameras. But I commented that it's due to z8 for future reference.

Then, I also re-processed tile 26690 on 20240406, given that we had reprocessed the previous night's observation.

tsnr and nightqa have been re-run for both nights.

Please close the issue if things look fine to you.

[schlafly]

Thanks, looks good, closing!