[PIPE2D-1142] fix ccds gain Created: 13/Jan/23  Updated: 14/Feb/23  Resolved: 02/Feb/23

Status: Done
Project: DRP 2-D Pipeline
Component/s: obs_pfs
Affects Version/s: None
Fix Version/s: None

Type: Task Priority: Normal
Reporter: arnaud.lefur Assignee: arnaud.lefur
Resolution: Done Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Relates
relates to PIPE2D-1158 Regenerate CALIBs following SM3 gain ... Done
relates to PIPE2D-1160 Validate and install gain-corrected C... Done
relates to INSTRM-1840 measure sm1/sm3 CCDs gain Done
Story Points: 1
Reviewers: price

 Description   

CCDs don't have correct gain values, I'll replaced them with the ones calculated at JHU.
But those might be re-estimated later.

 Comments   
Comment by rhl [ 13/Jan/23 ]

Great, thanks.

We also need a ticket to measure the gain using flat field lamps on a regular basis, and in particular we must measure the gains every time that we install a new SM at Subaru. And, of course, update the gains for that set of detectors in obs_pfs. Once we switch to gen3, we should be able to track the evolution of the gains.

In the short run, do we have a ticket (INSTRM?) to measure the SM1/SM3 gains?

Comment by arnaud.lefur [ 01/Feb/23 ]

I though this was already merged, my bad.
I do have one question though, what's the unit of the readNoise in the yaml file ? adu or e- ?

Comment by price [ 01/Feb/23 ]

I believe it's electrons.

Comment by arnaud.lefur [ 02/Feb/23 ]

merged to master, note that those values comes from JHU data.
I've re-measured it using ring nov22 ring-lamp data (see INSTRM-1840) but I haven't updated the values in obs_pfs.

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