NYU Value-Added Galaxy Catalog

sdss_imaging_geometry.fits

This file is located at:

$VAGC_REDUX/sdss/sdss_imaging_geometry.fits

It describes the SDSS imaging geometry in terms of spherical polygons. This file can be read in using the 

read_fits_polygons

tool in idlutils.

The columns are:

  1. XCAPS[3,N]: directions for each cap (as specified in the mangle documentation)
  2. CMCAPS[N]: size of each cap (as specified in the mangle documentation)
  3. NCAPS: number of caps
  4. WEIGHT: weight assigned to each cap (ignore this)
  5. STR: area of each cap in steradians
  6. USE_CAPS: bitmask designating which caps to use
  7. RUN: primary SDSS drift scan run
  8. RERUN: processing rerun used for primary run
  9. CAMCOL: primary camera column
  10. FIELD: primary field in run
  11. IBINDX:
  12. IFINDX:
  13. NFIELD:
  14. IPRIMARY:
  15. ICAP:
  16. NCAPS:
  17. MJD:
  18. TAI:
  19. RA:
  20. DEC:
  21. NODE:
  22. INCL:
  23. MU_START:
  24. MU_END:
  25. NU_START:
  26. NU_END:
  27. XBIN:
  28. YBIN:
  29. NBALKAN:
  30. PSF_FWHM:
  31. SKYFLUX:
  32. SUN_ANGLE:
  33. PHOTO_STATUS:
  34. PSP_STATUS:
  35. IMAGE_STATUS:
  36. CALIB_STATUS:
  37. SCORE:

NYU Value-Added Galaxy Catalog