ICE is a system which allows the astronomer to acquire CCD data using IRAF on a SUN workstation. ICE (which stands for ``IRAF Control Environment") replaces the FORTH data acquisition systems that have been in use with PDP 11 computers since the earliest days of CCDs on Kitt Peak (circa 1980). The astronomer uses ICE to initiate an exposure using basically a single command, observe. At the end of the integration, the data are written to disk in IRAF format, where they can be taped in FITS format. Furthermore, the astronomer has immediate and full access to the many powerful diagnostic tools contained within IRAF, as well as routines for quick-look and data reduction.
The IRAF package for taking CCD data is actually called ccdacq; it was originally written by Skip Schaller at Steward Observatory, and subsequently adapted to run the Kitt Peak controllers with various improvements to the user interface as we gained experience with the system.
Additional resources you may wish to review are:
These documents are all available via anonymous ftp to ``ftp.noao.edu", and can be found as ``/iraf/pub/beguide.ps.Z", ``/kpno/manuals/ice.xnotes.ps.Z", and ``iraf/iraf/docs/ ccduser2.ps.Z". For more on anonymous ftp and retrieving manuals, see Sec. P. These manuals can also all be accessed via the Kitt Peak home page: http://www.noao.edu/kpno/kpno.html.