[AstroPy] astropy.vo.client conesearch radius problem?

Evert Rol evert.rol at gmail.com
Mon Jan 16 02:46:21 EST 2017


 Hi Francisco, 

Could you send a short working code example around that shows the actual problem? 
Possibly for both the GSC (ok) and the USNO catalogs (not ok).

Evert



> Hi all!
> 
> I looked in the Internet but I did not find references to this problem, so maybe I'm making something wrong.
> 
> So I'm using the conesearch from astropy.vo.client to query some catalogs (indeed all the catalogs that are returned by conesearch.list_catalogs() ).
> 
> The thing is, I'm using a radius of 0.2 seconds of arc and it seems like when querying some catalogs the results seem to be out of that requested radius. For instance, two sources returned by the query were, one at ra=5.602814 deg and another one @ ra=5.536589 deg.
> 
> That does not happen with the 'Guide Star Catalog v2 1' which seems to work properly, it happens when requesting the The PMM USNO-A1.0 Catalogue (Monet 1997) 1'.
> 
> Am I missing something or making something wrong or is it a known bug?
> 
> Thanks a lot!
> BR
> Fran Gallardo
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