CCDINSTRUMENT COMMANDS

?		Print command summary
help		Print command summary
imheader	Page image header
instrument	Print current instrument translation file
next		Next image
newimage	Select a new image
quit		Quit
read		Read instrument translation file
show		Show current translations
write		Write instrument translation file

translate	Translate image string selected by the imagetyp parameter
		to one of the CCDRED types given as an argument or queried:
		    object, zero, dark, flat, comp, illum, fringe, other

The following are CCDRED parameters which may be translated.  You are
queried for the image keyword to use or it may be typed after the command.
An optional default value (returned if the image does not contain the
keyword) may be typed as the second argument of the command.

	BASIC PARAMETERS
imagetyp	Image type parameter (see also translate)
subset		Subset or filter parameter
exptime		Exposure time
darktime	Dark time (may be same as the exposure time)
	
	USEFUL DEFAULT GEOMETRY PARAMETERS
biassec		Bias section (often has a default value)
trimsec		Trim section (often has a default value)

	COMMON PROCESSING FLAGS
fixpix		Bad pixel replacement flag
overscan	Overscan correction flag
trim		Trim flag
zerocor		Zero level correction flag
darkcor		Dark count correction flag
flatcor		Flat field correction flag

	RARELY TRANSLATED PARAMETERS
ccdsec		CCD section
datasec		Data section
fixfile		Bad pixel file

fringcor	Fringe correction flag
illumcor	Ilumination correction flag
readcor		One dimensional zero level read out correction flag
scancor		Scan mode correction flag

illumflt	Ilumination flat image
mkfringe	Fringe image
mkillum		Illumination image
skyflat		Sky flat image

ccdmean		Mean value
fringscl	Fringe scale factor
ncombine	Number of images combined
date-obs	Date of observations
dec		Declination
ra		Right Ascension
title		Image title