Comments (5)
it s a stuck fiber on a mag=5 star... ouch! (FIBER=862, LOCATION=1338, TARGETID=-228271338
): https://www.legacysurvey.org/viewer-dev/?ra=343.8067&dec=8.8160&catalog=tmpngldqzwq.
this fiber has become "stuck" on Oct. 17, i.e. few days only before the observation:
TIME LOCATION STATE POS_T POS_P MIN_P MAX_P MIN_T MAX_T EXCLUSION
------------------------- -------- ------ ------------ --------- --------- ------- ---------- --------- ----------------
2022-09-21T17:00:39+00:00 1338 0 0.0 0.0 1.8821365 182.0 -193.84338 190.84338 81e666b0d9f8a699
2023-10-17T17:00:48+00:00 1338 2 -0.084694706 143.42325 1.8821365 182.0 -193.84338 190.84338 81e666b0d9f8a699
so I guess it s bad luck...
we observed during 1101s: is there a risk of any instrumental damage?
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I think we want to keep this as unsure, mark P1 as bad (we don't want to use those redshifts), reprocess, and then mark good. @abhi0395 , @akremin ?
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@schlafly Tile has been reprocessed and nightqa+tsnr have been updated. Please feel free to close the issue if things look good to you.
https://data.desi.lbl.gov/desi/spectro/redux/daily/nightqa/20231021/
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Looks good, thanks Abhijeet, over to @SGontcho .
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Done, closed.
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