Layered Software Available for IRAF Versions 2.8/2.9/2.10

• ADC CD-ROM utility package - two IRAF tasks that extract data from Volume I of the ADC CD-ROM text version. See the article in IRAF Newsletter Number 12 (July 1992).
• CTIO - a package of miscellaneous IRAF tasks developed at CTIO. Contact Pedro Gigoux (pgigoux@noao.edu) for further information.
• COLOR - a prototype IRAF color image display package that provides conversion of three bandpass IRAF images to a Sun 24-bit RGB rasterfile format, a 24-bit to 8-bit compression algorithm and Floyd-Steinberg dithering, and an RGB 8-bit pixel dithering algorithm. These tasks allow rendering of three color images for display on common 8-bit color workstations.
• DIGIPHOTX - a new version of the digiphot package. This is included in IRAF Version 2.10.3BETA and later versions, but can be installed for use with other platforms prior to the release of V2.11. See accompanying articles in this Newsletter.
• FOCAS - a suite of programs for automatic detection, photometry, matching, classification, and cataloging of astronomical digital images. It also provides tools for accessing the catalogs and doing analysis. This is a collection of C programs that can be run in the IRAF environment or outside it as a standalone system (Unix platforms only). Contact Frank Valdes (fvaldes@noao.edu) if you are interested in running FOCAS on a VMS platform.
• IMCNV - two new tasks for converting between various external data formats and IRAF images. These tasks, import and export, are scheduled to appear in the V2.11 release, but are made available now for early testing. See the accompanying article in this Newsletter.
• NMISC - miscellaneous new tasks from NOAO collected together in a layered package to make them available prior to their release in the main IRAF distribution. This package currently contains the following tasks:

     kpnofocus   --  Determine the best focus from KPNO focus images
     psfmeasure  --  Measure PSF sizes from stellar images
     surfit      --  Fit a surface, z=f(x,y), to a set of x, y, z points
     specfocus   --  Determine spectral focus and alignment variations
     starfocus   --  Determine direct focus variations from stellar images
     xregister   --  Register 1 and 2 D images using x-correlation techniques
  

• RVX - the IRAF radial velocity analysis package. This is included in IRAF V2.10.3BETA and later versions of IRAF but is also available as a layered package for users with older versions of IRAF, or who want the latest version incorporating any bug fixes.
• SAOimage - an X Window System based image display server for IRAF developed originally by SAO (see article in IRAF Newsletter Number 8, October 1989).
• SPPTOOLS - a collection of programming tools for IRAF developers working in SPP. Included are tasks to locate and print the calling sequences of procedures, reformat code in a standard format, create or query identifier databases, and create or rename external packages. Of special interest is the spplint task that can be used to perform a Lint-like compile time verification of SPP code. For further information contact Mike Fitzpatrick (fitz@noao.edu).
• Volume rendering software - software to visualize 3D data cubes. This software has been discussed in previous issues of the IRAF Newsletter, i.e., Number 5 (October 1988) and Number 6 (February 1989).
• Kernel server kits - this software may be installed on a host system to allow the host to be remotely accessed by IRAF sessions running on other hosts. This is used, for example, to remotely access tape drives or the workstation display. Note that if IRAF is already installed on another node in your local network which is architecturally compatible and accessible via NFS, it may be simpler to NFS mount IRAF than to install the kernel server kit.
• UISDISP display software for non-DECwindows VMS Workstations - this software was discussed in IRAF Newsletter Number 7 (June 1989). It is included with VMS/IRAF version 2.10. A recent update with some small bug fixes is available from the contrib directory in the IRAF archives. For further information please contact Nigel Sharp (nsharp@noao.edu, 5355::nsharp).

The IRAF Group

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