This SAOimage display shows the alignment of USNO-J1.0 Stars with a test image with a world coordinate system. immatch can be run to list matches between USNO-J1.0 stars and sources found in the image. The command used was
saoujc test.ftswhere saoujc is
saoimage -reg `imujc -r 10 $1` -wcscom sujc_-ha_%s $*Clicking the w key on the star closest to the center returns the following:
sujc 2.5, 14 December 1998, Doug Mink SAO Find closest star UJ number RAJ2000 DecJ2000 Mag Plate Arcsec 1575.0345436 09:55:45.020 +69:01:45.85 12.20 61 1.17