Changes between Version 21 and Version 22 of ZoologyCrossmatching
- Timestamp:
- Sep 2, 2011, 3:47:14 PM (15 years ago)
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ZoologyCrossmatching
v21 v22 5 5 6 6 This page outlines an investigation into the cross-matching used by the Durham group to generate the 'true positives' and 'false positives' data subsets. Durham used TOPCAT to perform the cross-match, and presented the results as FITS files. Our aim is to reproduce the same results as Durham then experiment with different cross-matching parameters. 7 8 = Coverage = 9 10 As can be seenfrom the plot below, Sloan stripe 82 does not fully cover the SAS footprint. This needs to be taken into account when performing crossmatching and determining false positives. 11 12 [[Image(coverage.gif, 500px)]] 7 13 8 14 = Durham-supplied data = … … 23 29 || footprint-z-not-matched-psphot.fits.bz2|| 51,391|| all IPP false detections in y || 24 30 25 = Coverage =26 27 As can be seenfrom the plot below, Sloan stripe 82 does not fully cover the SAS footprint. This needs to be taken into account when performing crossmatching and determining false positives.28 29 [[Image(coverage.gif)]]30 31 31 32 = Durham method =
