[PIPE2D-985] Validate classification accuracy by using external catalogs Created: 21/Feb/22  Updated: 20/Dec/23

Status: In Review
Project: DRP 2-D Pipeline
Component/s: None
Affects Version/s: None
Fix Version/s: None

Type: Task Priority: Normal
Reporter: ishigaki Assignee: ishigaki
Resolution: Unresolved Votes: 0
Labels: f-star-selection
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Blocks
blocks PIPE2D-362 Select F-star candidates from Pan-Sta... Done
is blocked by PIPE2D-984 Validate classification accuracy by u... In Review
is blocked by PIPE2D-982 Evaluate uncertainties in extinction ... Done
is blocked by PIPE2D-983 Reflect the uncertainties of the exti... Done
Epic Link: Master FLUXSTD catalog
Reviewers: Masayuki Tanaka

 Description   

By cross-matching selected candidate F-stars with external spectroscopic catalogs such as APOGEE, MaStar, etc., we evaluate the classification errors. Improve the classification algorithm if necessary.  

 Comments   
Comment by ishigaki [ 24/Mar/23 ]

The classification accuracy has been validated by the SDSS/SEGUE catalog. 
The predicted parameters by the method using brutus have a mean accuracy of ΔTeff=102±243[K] and logg=0.4±0.4[dex]. An actual performance should be verified during upcoming engineering observations.

Comment by Masayuki Tanaka [ 26/Apr/23 ]

Is there any known systematic error in the SEGUE stellar parameters?  Also, uncertainties are a function of magnitudes and I suspect SEGUE stars are brighter than typical standard stars for PFS.  How much brighter?  We will measure the accuracy with engineering data, but please provide a few more details before closing this ticket.

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