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Commands listed alphabetically

ABORT

--- abort an operation; discard any associated data.

ARC

--- take one exposure (of an arc lamp) and save it.

BIAS

--- take one unpreflashed bias frame and save it.

BIN

--- select binned read-out of a CCD.

COMMENT

--- log a comment about an observation.

CONTINUE

--- restart an exposure suspended by PAUSE ( q.v.).

DARK

--- take one dark frame and save it.

DIR(ECTORY)

--- list observations made tonight.

DISAB(LE_WIN)

--- suspend the effect of windowing on a CCD.

ENAB(LE_WIN)

--- resume windowing after DISABLE_WIN ( q.v.).

EXPOSE

--- expose the detector without clearing or reading out.

FINISH

--- terminate an exposure immediately; save the data.

FLASH

--- take one preflashed bias frame and save it.

FLAT

--- take one flat-field exposure and save it.

GLANCE

--- take one exposure but do not save it to disk.

KEEP

--- save the last exposure to disk.

KILLM(ULTRUN)

--- stop a multiple exposure.

LOG_CHANGE

--- log a major change in observing configuration.

LOG_NEW_DAY

--- start a new log; add page headings.

LOG_SORT

--- sort the log into order of increasing run numbers.

LOG_START

--- restart the log display.

MAP

--- take one exposure (to map the dekker position) and save it.

MULTRUN etc.

--- make multiple exposures.

NEWTIME

--- change the length of an exposure.

NONASTRO

--- change the read-out speed to NONASTRO.

NOTE

--- synonym for LOG_CHANGE.

OVERSCAN

--- view all the IPCS' intensifier.

PAUSE

--- suspend an exposure.

PREFLASH

--- set the length of a CCD preflash.

PROMOTE

--- promote a scratch file to a normal run.

QUE(UE_REPORT)

--- report the actions in the queue.

QUICK

--- change the read-out speed to QUICK.

RAT_AUTO

--- take a channel out of interactive mode.

RAT_INTER

--- put a channel in interactive mode.

RAT_SIM

--- simulate an action or actions.

RAT_TALK

--- control the verbosity of the DAS.

RAT_WAIT

--- wait (in an ICL procedure) for an exposure to finish.

READOUT_SPEED

--- change the read-out speed of a CCD.

REFORM(AT)

--- restore the last-stored image-format.

RESOLUTION

--- change the resolution factors in the IPCS.

RSPEED

--- change the read-out speed of a CCD (synonym of READOUT_SPEED)

RUN

--- take one exposure (of an astronomical target) and save it.

SCRATCH

--- take one exposure and save it in a scratch file.

SETUP_CCD

--- prepare a channel for taking CCD data.

SETUP_IPCS

--- prepare a channel for taking IPCS data.

SHUTTER

--- move a detector shutter.

SKY

--- take one exposure (of the night/twilight sky) and save it.

SLOW

--- change the read-out speed to SLOW.

STANDARD

--- change the read-out speed to STANDARD.

TARGET

--- synonym for RUN.

TURBO

--- change the read-out speed to TURBO.

WINDOW

--- define a read-out window on a CCD or a DICI window for IPCS.

WINK

--- as SCRATCH ( qv.) but with no header collection.

ZPLANE

--- expose one plane of a cube.