Plotting the USNO-A1.0 Catalog Using SAOimage and imua1

[HST GSC] [USNO-A1.0] [USNO-A2.0] [USNO-SA1.0] [USNO-SA2.0] [labelled] [unlabelled] [no stars]

image with USNO-A1.0

This SAOimage display shows the alignment of USNO-A1.0 Stars with a test image with a world coordinate system. immatch can be run to list matches between USNO-A1.0 stars and sources found in the image. The command used to display the image, before the labels were turned off using the ] key, was

saoua1 test.fts
where saoua1 is
saoimage -reg `imua1 -r 10 $1` -wcscom sua1_-ha_%s $*
Clicking the w key on the star closest to the center returns the following:

sua1 2.5, 8 December 1998, Doug Mink SAO  Find closest star
USNO A1 number  RAJ2000       DecJ2000   MagB  MagR Plate  Arcsec
1575.03069675 09:55:23.589 +69:00:49.43  16.9  16.9   38      0.26

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