Automatic Stellar Coordinate fitting
Version : 1.2
Author(s) : Peter Siegbjørn Jørgensen (psj@oersted.dtu.dk) , Andrew Pickles (pickles@ifa.hawaii.edu)
License : GPL
Website : http://www.ifa.hawaii.edu/users/pickles
Installs from Open Source Astronomy for Linux cd 3
Disk space required for installation is 491.00 Kb
After the package is installed it can be accessed using the command
/opt/astro/bin/startascfit
The core program "starfit" matches stars (triangle fitting) between two lists: "asc_sextr.cat" is generated by "s_extractor" searching the FITS image, and "asc_ref.cat" is generated by "crect" searching the USNO-A2 catalog, or by "msqbin" searching a compressed version of the 2MASS catalog. Most computational time is spent in sextractor; starfit should work with image catalogs produced by other means if given in the right format.
EXAMPLES --------
Usage: ascfit fitsfile [-sw value]
eg: ascfit ccd.030 - will fit one file
eg: ascfit ccd.03 - will expand list & fit ccd.030-039
eg: ascfit ccd.0 - will expand list & fit ccd.000-099
Example: ascfit ccd.030 ccd.030:15h08:00.30+0.227X-0.0011Y -14d49:28.5-0.220Y- 0.0007X: 67/96/92*,0.40"RMS
file:RA as f(X/Y) DEC as f(X/Y): Stars fitted/ found in image/catalog, RMS error (arcsec)
ascfit himg.fits -ir -scale 0.3 (specify scale for infrared image) himg.fits:03h46:49.45-0.303X-0.0037Y +23d46:44.5+0.277Y-0.0029X: 9/10/22*,0.12"RMS
ascfit aten.230 -roff 140 -doff 140 - fit 8 images from UH8K
(pointing center is offset from mosaiic center)