Comments (6)
@akremin , can we mark 128784 as bad and reprocess 23108, then I'll repeat QA?
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Following up this out-of-focus case with @crockosi , it turns out that we were slightly delayed in turning autofocus on, so the autofocus corrections from the initial focus loop were not applied to this exposure. So we now understand how everything happened.
Action items could be:
- remind about logging out-of-focus exposures to night log and turning on autofocus
- maybe emitting a warning if the NTS is turned on while autofocus is off?
- including autofocus defocus measurements in header so that we can automatically flag these downstream?
Email from Connie:
The reason we were out of focus for exposure 128784 is that the LO hadn't enabled autofocus until after the slew to that field. So we were at the LUT plus temperature compensation value, not the best focus as determined by the donut analysis.
Here is a Grafana plot of the same time range as Eddie sent me earlier, but I've included the "LUT configuration" panel. The AOS option is not enabled until 2:42:38. The fits file for 128784 says that the sequence started at 2:38:21Z (fits header SEQSTART).
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Flagged exp 128784 on tile 23108 on 20220405 to ignore and removed the spectra and redshift files. Reran the redshifts for 20220406 so they don't include the earlier exposure on the previous night, and updated the summary tables and night QA for both nights.
Done on the pipeline side.
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I've cleared the QA here. Tile is not done so I have not yet repeated QA; tile should be reobserved "automatically" by the NTS one of these nights.
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@sbailey, can you help me understand what to expect with desi_update_tiles_specstatus? This tile came up again for QA even though in tiles-daily.ecsv it has status = obsstart and low EFFTIME. But in tiles-specstatus, post desi_update_tiles_specstatus, it still has status = obsend and high EFFTIME. So it came up for QA and it was marked as bad again. I was counting on its status in tiles-specstatus being updated to its reprocessed state, but that does not seem to be occuring.
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Closed with desi_update_tiles_specstatus --all --tileids 23108.
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Related Issues (20)
- Collimator feature (b-camera) on 20240223 sframesky images HOT 1
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- Tiles marked as unsure after r3 FEE crash on 20240321 HOT 5
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- All tiles observed on the night of 20240403 marked as unsure due to multiple problems/doubts HOT 9
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- Multiple features on sframesky from 20240406 HOT 1
- redrock files missing from archive folder HOT 2
- archive status of 22432 with missing petals for different reasons HOT 4
- tile 25529 archive 20221008 vs 20221011 HOT 3
- Mark z6 as bad from 20231130 - 20231210?
- Bright tiles 25915 and 21779 affected by CTE in r7 HOT 2
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- r7 has fairly bad CTE starting on 20240603
- Reprocess tiles with "old" QN weights instead of new QN weights HOT 15
- Tiles from 20240627 marked unsure due to possible r1 reset. HOT 11
- Make sure updated sky monitor gets installed at KPNO
- Tile 3395 from 20240811 has low THRUFRAC values on P1/P2/P3 HOT 1
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