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Dark measurement as an OPERATION

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 gif and gif. 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