This section provides a summary of detector operation. For more details,
observers should consult the documents:
AAO UM 17.1 ``A User's Guide to CCD Detectors at the AAT", by
R. D. Robinson, E. M. Sadler, J. R. Barton, & J. O. Straede (1989)
AAO UM 10.1 ``IPCS User's Manual", by J. Lucey & K. Taylor (1983)
AAO UM 20.2 ``The OBSERVER software system", by W. Lupton et al.
(1991)