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Takes an exposure, and transfers the data plus headers to a numbered file in the scratch area on the system computer.
Format: SCRATCH <channel> <filenum> <obstype> <time>
[" Channel: The name of the CCD data-acquisition channel to be used.
Filenum: The number of the scratch file.
Obstype: The observation type ( e.g. FLAT, ARC).
Time: The exposure time in seconds.
Title: A title for the observation.
Examples: SCRATCH RED 5 ARC 60
Queuable: Yes.
Comments: As for the RUN command, except that the data
is finally transferred not to the main data area on the
system computer but to a scratch area. This command
is intended primarily for use with setup procedures.