2008-01-15T15:23:00Z 50 The 2MASS point source catalog The 2MASS Point Source Catalogue, short a couple of exotic fields. We provide this data mainly for matching with other catalogs within our TAP service. stars surveys astrometry Catalog Infrared 0/0-11 8.33e-20 1.863e-19 1997-06-07 2001-02-16 //scs#pgs-pos-index Position ICRS Epoch J2000.0 "RAJ2000" "DEJ2000" 10000 10000 10000 pts_key is called cntr in the IRSA/GATOR version of 2MASS. This sequential number was defined when source records from final data processing were loaded into the Point Source Working Database. Pts_key is incremented in order (or reverse order depending on the scan direction) of declination within a scan. For this reason, on average sources with close pts_key values are close to each other on the sky, except at Tile boundaries. Pts_key ordering thus provides a useful mapping of the 2MASS release on storage media. PSC sources are cross-referenced in the XSC, Known Asteroid Detection List, Known Comet Detection List, and Planet and Planetary Satellite Detection List via the value of pts_key. 8.0. "E" This category includes detections where the goodness-of-fit quality of the profile-fit photometry was very poor (rflg=2 and [jhk]psf_chi>10.0), or detections where psf fit photometry did not converge and an aperture magnitude is reported (rflg=4), or detections where the number of frames was too small in relation to the number of frames in which a detection was geometrically possible (rflg="1" or rflag="2"). "A" Detections in any brightness regime where valid measurements were made (rflg="1","2" or "3") with [jhk]\\_snr>10 AND [jhk]\\_cmsig<0.10857. "B" Detections in any brightness regime where valid measurements were made (rflg="1","2" or "3") with [jhk]\\_snr>7 AND [jhk]\\_cmsig<0.15510. "C" Detections in any brightness regime where valid measurements were made (rflg="1","2" or "3") with [jhk]_snr>5 AND [jhk]_cmsig<0.21714. "D" Detections in any brightness regime where valid measurements were made (rflg="1","2" or "3") with no [jhk]_snr or [jhk]_cmsig requirement. ]]> 1" More than one component was fit simultaneously during R2 profile-fit photometry, where the value of the field is the number of components simultaneously fit. The maximum number of components is 7 in any band for the PSC, so this bflg is always a three character flag. Multi-component fitting occurs only for profile-fitting, and only when more than one detection is found within ~5". Single detections that are not well-fit by a single PSF are not split. ]]> twomass_q 2Mass Query 127.567785 1.526871 0.001