[INSTRM-1534] Define a better convergence criteria Created: 25/Feb/22  Updated: 02/Sep/22  Resolved: 29/Jul/22

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

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

Issue Links:
Relates
relates to INSTRM-1649 Study the convergence performance cha... Done
Sprint: PreEngRun05 F, preEngRun07Sep

 Description   

Currently, we define 10 micron for cobra convergence criteria. According to the actual operation, some cobra move to nowhere. However, some cobra just not close enough. Those cobra still contribute to survey with lower efficiency. Therefore, this ticket rise this question. Should we define a better convergence criteria other than a region number?



 Comments   
Comment by hassan [ 08/Apr/22 ]

To be discussed in the next ICS/PFI telecon (or earlier) with rhl.

Comment by hassan [ 15/Apr/22 ]

rhl proposed a different approach where a smoother metric, such as the fraction of the fiber illuminated, is used. Then after analysis, the criterion for establishing convergence can be better determined. 

Comment by hassan [ 29/Apr/22 ]

Chi-Hung, Craig and Robert will discuss the best approach for this.

Comment by chyan [ 29/Jul/22 ]

According to the discussion, we should close this ticket and file more specific ticket based based on June run data.

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