Dark measurement as an OPERATION
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Asking for a
DARK in the Operation list offers a choice between 5 fixed
procedures, providing increasing levels of dark measurement
accuracy, given (in ADUs for gain 
2) in Tables
and . The accuracy does not
change with 
, but, since the dark frame must be
measured with the same as the
observation, the time penalty is 
. In addition, for the SW channel, a FAST-RAZ procedure is
automatically applied by the system.
Figure: SW Dark frame
Figure: LW Dark frame
ISOCAM Observer's Manual - V1.0
Tue Oct 31 12:06:23 MET 1995