Use imgsca to List the 10 Brightest GSC-ACT Stars in an Image

Find the 10 brightest GSC-ACT stars in image test.fts and sort them by right ascension.
$ > imgsca -h -sn 10 test.fts

imgsca 2.9.4, 29 June 2001, Doug Mink (dmink@cfa.harvard.edu)
test.fts: RA:  09:54:09.518 - 09:56:24.378 J2000
          Dec: +68:55:30.78 - +69:07:34.87 J2000
10 / 14 HST Guide Stars/ACT Mag < 14.6
GSC number  RA2000       Dec2000      Mag  Class Band N    X       Y   
4383.0924 09:54:15.067 +68:57:58.28  14.57    0   14  1   981.8   211.2
4383.0863 09:54:18.864 +69:02:38.62  12.34    0   12  1   950.0   606.2
4383.0434 09:54:31.764 +69:01:26.90  12.00    0   12  1   853.1   504.4
4383.0308 09:54:42.326 +69:05:52.87  11.86    0   11  1   770.9   878.9
4383.0613 09:54:45.408 +68:56:59.39  11.93    0   11  1   752.0   126.6
4383.0574 09:54:53.275 +69:03:48.35  14.50    0   14  1   689.2   702.9
4383.1127 09:55:02.078 +68:56:23.42   8.53    3    8  1   625.6    75.2
4383.0340 09:55:23.474 +69:00:49.46  14.59    0   14  1   461.8   449.7
4383.0928 09:55:41.422 +69:00:30.13  11.42    3   11  1   325.9   422.1
4383.0565 09:55:45.103 +69:01:45.84  12.33    3   12  1   297.8   528.8
where the columns are region.number, J2000 RA, J2000 Dec, magnitude (V in north, B in south), object class (0=star, 3=nonstar), bandpass, number of catalog entries for this source, and image X and Y pixel coordinates computed using the image world coordinate system, and the To write a file test.fts.gscact, use
imgsca -ws test.fts

Last updated 2 July 2001 by Doug Mink dmink@cfa.harvard.edu

Telescope Data Center [WCSTools] [WCSTools programs] [imcat] [imgsca]