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= Outline =

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 supplied the following files (FITS binary table format):



|| '''File''' || '''Rows''' || '''Comments''' ||
|| footprint-stripe82.fits|| 449,254 || Sloan Stripe 82 master file||
|| footprint-g-all-psphot.fits.bz2 || 282,604|| all IPP g filter||
|| footprint-r-all-psphot.fits.bz2|| 278,280 || all IPP r filter||
|| footprint-i-all-psphot.fits.bz2|| 320,655 || all IPP i filter||
|| footprint-z-all-psphot.fits.bz2|| 258,130|| all IPP z filter||
|| footprint-y-all-psphot.fits.bz2|| 175,578 || all IPP y filter||
|| footprint-g-not-matched-psphot.fits.bz2 || 171,973 || all IPP false detections in g ||
|| footprint-r-not-matched-psphot.fits.bz2|| 67,455 || all IPP false detections in r ||
|| footprint-i-not-matched-psphot.fits.bz2|| 59,973 || all IPP false detections in i ||
|| footprint-y-not-matched-psphot.fits.bz2|| 46,729 || all IPP false detections in z ||
|| footprint-z-not-matched-psphot.fits.bz2|| 51,391|| all IPP false detections in y ||