[FIBERALLOC-33] How to deal with manually provided/cached catalogues for guide star selection? Created: 21/Aug/20  Updated: 30/Sep/20

Status: Open
Project: Target to fiber allocation and configuration
Component/s: ets_shuffle
Affects Version/s: None
Fix Version/s: None

Type: Task Priority: Normal
Reporter: Martin Reinecke Assignee: mxhf
Resolution: Unresolved Votes: 0
Labels: None
Remaining Estimate: Not Specified
Time Spent: Not Specified
Original Estimate: Not Specified

Issue Links:
Blocks
blocks FIBERALLOC-28 Update code to find guide star candid... Done
Relates
relates to INSTRM-1078 Install Gaia DR2 Catalogue at Subaru Done

 Description   

The description of https://pfspipe.ipmu.jp/jira/projects/FIBERALLOC/issues/FIBERALLOC-28 mentions:

 

But also shuffle must allow for other catalogs (sdss, vizier) and manually supplied catalogs (e.g. from HSC pre-imaging).

 

(emphasis added).

I'd like to understand better what these manually supplied catalogs look like. If they come in form of table names on a TAP-capable server, everything is fine, but if they are supplied as, e.g., FITS files (which was the case for HETDEX, if I understand correctly), I cannot really deal with them at the moment. Querying anything that is not behind an ADQL-capable front end will require quite significant changes and enhancements to the current version of the code.



 Comments   
Comment by rhl [ 21/Aug/20 ]

Is there some reason not to load these tables into a DB as part of the observing preparation? I don't know whether you'd rather have e.g. TAP, sqlite, or postgres but it seems reasonable for this to be done outside this code.
There are other places that we need to have user-provided catalogues in a PFS-defined format (e.g. pfsDesign files) so I think we are going to have to expect to make this sort of transformation.

Comment by Martin Reinecke [ 21/Aug/20 ]

If there is an option of providing the catalogs in a way that I can access them in a way analogous to the online catalogs, I'm perfectly happy. I can't judge how much effort this would be, but if it is an acceptable solution, then we can just clarify this in the description of FIBERALLOC-28 and close this issue.

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