Use imub1 to List the 10 Brightest
USNO-B1.0 Stars in an
Image
Find the 10 brightest USNO-B1.0 Stars in image
test.fts and sort them by right
ascension.
$ > imub1 -hsn 10 test.fts
imub1 3.3.0, 28 January 2003, 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 / 589 USNO-B1.0 Catalog MagB1 <= 100.0 at 1995.80 in FITS image test.fts
usnob1_id RA2000 Dec2000 MagB1 MagR1 MagB2 MagR2 MagN PM NI X Y
1590.0104850 09:54:42.320 +69:05:52.66 12.92 11.36 99.99 11.08 10.68 9 4 771.0 878.6
1589.0106241 09:55:01.047 +68:56:22.74 11.38 10.17 10.97 10.12 9.78 10 0 633.4 74.3
1589.0106249 09:55:01.582 +68:56:22.85 99.99 18.13 9.73 9.04 9.24 9 4 629.3 74.4
1589.0106252 09:55:01.852 +68:56:22.35 99.99 19.62 9.94 9.07 99.99 8 3 627.3 73.7
1589.0106251 09:55:01.947 +68:56:22.78 17.58 15.87 9.78 8.89 8.62 9 15 626.6 74.3
1589.0106255 09:55:02.008 +68:56:22.52 18.81 99.99 9.94 9.00 8.83 9 4 626.1 73.9
1589.0106254 09:55:02.021 +68:56:21.67 18.44 17.24 9.74 9.07 8.76 9 15 626.0 72.7
1589.0106262 09:55:02.700 +68:56:22.22 11.40 10.26 11.02 10.21 9.88 10 0 620.9 73.5
1589.0106415 09:55:52.405 +68:59:13.83 99.99 9.36 99.99 8.79 99.99 0 2 242.8 314.4
1589.0106420 09:55:55.495 +68:59:13.98 15.66 99.99 99.99 8.17 99.99 0 2 219.4 314.6
where the columns are region.number, J2000 RA, J2000 Dec, B and R magnitudes
from first and second epoch plates, N magnitude from second epoch plates,
confidence in proper motion (1-9, 10=Tycho-2), number of plate IDs (0=Tycho-2,
2-5), and image X and Y pixel coordinates computed using the
image world coordinate system,
the plate, unless from a catalog, and the distance in arcseconds from the center
of the image. To write a file
test.fts.ub1, use
imub1 -wn 10 test.fts
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