WFI Image Quality


The best seeing that one may expect with WFI/2p2m is about 0.7 arcsec and more generally good seeing is 0.9 arcsec. The typical seeing is about 1.1 arcsec and usually about 0.2 - 0.4 arcsec worse than the DIMM values.

  • WFI/2.2m seeing v/s DIMM seeing since December 2000
  • WFI/2.2m seeing distribution per filter