This SAOimage display shows the alignment of
2MASS Point Sources with a test image after a
world coordinate system has been fit. The coordinates plotted are based
on header keywords describing a plane-tangent system fit by matching HST
Guide stars and sources found in the image.
This image was produced by a one-line Unix shell script for this task,
saoimage -reg `imtmc -r 15 $1` -wcscom stmc_-ha_%s $1where the argument to the task is the name of the file to be displayed.
The immatch program can provide a list of the stars in the image which match catalog stars.
|Click on the image for full-screen view|
imtmc finds all of the
2MASS Point Sources in the image
based on the world coordinate system parameters in its header and writes
them to the region file
testx90mw.fits.tmc, seen on the right.
The name of this file is sent to standard output which the backquotes give to SAOimage as a command line argument following the -reg command.
# 2MASS Point Sources (10" radius) CIRCLE(737,763,16) # tmc 1214.091454 CIRCLE(661,661,16) # tmc 1214.091456 CIRCLE(960,978,16) # tmc 1215.091484 CIRCLE(283,620,16) # tmc 1214.091471 CIRCLE(209,859,16) # tmc 1214.091473 . . . CIRCLE(838,1016,16) # tmc 1215.091488 CIRCLE(652,459,16) # tmc 1214.091457 CIRCLE(207,868,16) # tmc 1214.091474 CIRCLE(137,562,16) # tmc 1214.091477 CIRCLE(267,260,16) # tmc 1213.091257
stmc 3.4.0, 11 June 2003, Doug Mink SAO Find closest star 2MASS PSC 16:15:56.023 +31:24:24.00 J2000 r= +00:02:00.0 at epoch 2000.00 2MASS_num. RA2000 Dec2000 MagJ MagH MagK Arcsec 1214.091462 16:15:56.093 +31:24:24.39 15.231 14.833 14.549 0.98
Ex. 1: List the 10 brightest 2MASS Point Source Catalog stars in a FITS image
Ex. 2: List the 2MASS Point Source Catalog stars in a FITS image to a file
[WCSTools programs] [imcat] [imtmc] [SAOimage] [stmc]