Palomar-QUEST candidate selection for March 2002: Dec = 13
Position matching
Data from 20040320 and 20040321 was positionally crossmatched using a 1.5"
threshold; over the range, 120 < RA < 260.
Aperture magnitude correction
The magnitude distributions show a problem:
Cloud
Regions excluded:
- RA < 170
- 183.7 < RA < 186.3
- 210.7 < RA < 213.3
- 235.3 < RA < 239
- RA > 253
Colour-colour
Sources of contamination