[INSTRM-1821] Propogate template fitting information to agccActor Created: 09/Dec/22  Updated: 04/Jan/23  Resolved: 04/Jan/23

Status: Won't Fix
Project: Instrument control development
Component/s: None
Affects Version/s: None
Fix Version/s: None

Type: Task Priority: Normal
Reporter: karr Assignee: chyan
Resolution: Won't Fix Votes: 0
Labels: EngRun
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Blocks
blocks INSTRM-1817 Implement code for fitting PSF templa... Won't Fix
Sprint: PreEngRun09Dec

 Description   

In order to fit the templates to the PSFs in the AG camera, the agccActor and centroiding routine need

  • dZ: the offset in focus compared to the focus in autoguider. This can be calculated from the database if the value of m2_pos3 for a focussed autoguider is known.
  • the reference positions of the stars in the focussed image
  • the template themselves

The first two items could be obtained from agc_exposure if the agc_exposure_id for the reference image is known.

The third item could be stored in pfs_instdata (and, if necessary, updated in the same way as other calibration files).  

 Comments   
Comment by karr [ 14/Dec/22 ]

Chi-Hung and I had a chat and have come up with a solution. 

  • add a keyword to the AGCC expose command which tells the code that this is a reference image. 
  • if the keyword is set, the positions determined from sep will be saved as part of the cParms dictionary, and will be the reference points until the expose command is called with the keyword again.
Comment by hassan [ 04/Jan/23 ]

It is planned to correct the AG focus for the upcoming Feb 2023 Run 10.

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