[OBSPROC-36] Create pfsDesigns with a larger `dot_margin` factor for the next run in Feb. 2023. Created: 27/Jan/23  Updated: 18/Feb/23  Resolved: 18/Feb/23

Status: Done
Project: PFS observation processing/procedure
Component/s: None
Affects Version/s: None
Fix Version/s: None

Type: Task Priority: Normal
Reporter: Kiyoto Yabe Assignee: Kiyoto Yabe
Resolution: Done Votes: 0
Labels: EngRun
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Sprint: PreEngRun10Feb

 Description   

In the Nov run, we made pfsDesigns without any additional margin factor to avoid black dots, so some objects close to the dot were partially vignetted, which made the reduction a little bit hard. In longer run, we will deal with the effects in pipeline and also add penalty as a function of distance from dot when assigning fibers. In shorter run, for the next run in Feb., create pfsDesign with a larger margin with `–dot_margin>1`. The factor may depend on the location on the focal plane, but for now use the fixed factor for all fibers, which should be discussed somewhere taking into consideration the results in Nov. and theoretical prediction using such as spot diagrams.



 Comments   
Comment by Kiyoto Yabe [ 03/Feb/23 ]

As per discussion in ICS-PFI-MCS telecon on Feb 3, 2023, we will set the nominal safe radius of 1.22 mm based on Kawanomoto-san's calculation. If the number of stars assigned is problematically small, we will relax it down to, say, 1.1 mm.

Comment by Kiyoto Yabe [ 18/Feb/23 ]

Merged a few changes of codes. Although we could not test the designs, tasks in the tickets have been done.

 

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