Automatic Astrometry Using IRAF
Autoast.cl & Intast.cl
AUTOAST.CL and INTAST.CL are
IRAF
tasks designed
for automatic plate solution and astrometry. These programs
are running under UNIX/LINUX - IRAF.
AUTOAST.CL is designed to automatically
find reference stars in the image
(by stars pattern recognition) and then
find the plate solution of the image,
writing the WCS keyword in the image header and converting
coordinates from/to the image coordinate system.
INTAST.CL is an interactive version designed to
find the equatorial coordinates and magnitude
(relative to
USNO-A
magnitudes) of objects in the image
selected using the mouse.
The programs are identifying the reference stars
from the USNO-A catalogue without user intervention.
The sole requirements of the programs are:
(1) north-aligned images, (2) guess coordinates (either manual or from the header)
accurate to about one field of view of the image.
Version for rotated images will be available within few weeks.
Required Software:
IRAF Installed.
The program was tested only on a Linux system, but it
may be ported to other systems by a few modifications.
Download autoast.tar.gz
Dounload a short manual [PostScript]
Dounload a short manual [PDF]
WCSTools Home Page (Also Needed, retrieve scat)
Scat.gz Linux binary
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Wise Observatory
Constructed: Feb 2000 By Eran Ofek.