Rolf Jansen's IRAF page
IRAF, NOAO's Image Reduction
and Analysis Facility, is one of the premier astronomical software packages,
and supports many current state-of-the-art instruments and observatories. It
also is a full programming environment for both scripted and compiled user
programs. Suites of related scripts/programs can be easilly added to the core
IRAF system as layered packages.
Over the years, I developed several such layered packages which are linked from
(current version: 12Jul2007) contains a variety of scripted
tasks that are transparently grouped into several sub-packages. Some
low-level scripts add additional functionality to equivalent core IRAF
task; other scripts are high-level interactive tasks.
rjtools is distributed as a single gzip-compressed tar-archive
(current version: 06Jul2004) is a package for the
semi-automated reduction of single-amplifier CCD data. The ccd48
package is a telescope-aware modular alternative to the built-in
imred.ccdred package that allows custom tailoring and local
adaptations for data from specific instruments, and (experimental at
present) allows one to direct the reduction via image header keywords.
- rjstis (presently under developement) is a package of scripted
tasks to create calibration reference frames for STIS CCD data taken
after July 2001, when its Side-2 electronics introduced a spurious,
highly erratic herring-bone pattern noise -- the residuals of which are
also apparent in the calibration reference frames. The pattern noise
can be removed using autofilet.pro, and
the rjstis tasks generate appropriate calibration frames.
- imclean is a task to "clean" images
by interpolation over "bad" pixels, defects/blemishes, or genuine objects
(such as stars) along both rows and columns, over a user-specified
rectangular or circular regions. This task may eventually be updated
and incorporated into the rjtools package. At present, it does
not follow the same conventions. Note that imclean.cl is merely
an IRAF user interface to a set of compiled executables
- An old collection of scripts is linked here.
Most of these scripts are superseded by the newer versions in the