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Running REDUCE/CCD

  The command REDUCE/CCD can process one or more science frame automatically provided:

The standard default calibration procedure involves the following processing: overscan subtraction, trimming, bias and dark subtraction, and flat fielded. The keyword to be set for controlling these options are listed in Table gif. Below we describe how the command will try to correct your data.

REDUCE/CCD will first identify the association and reduction tables. From the reduction table it gets the names of the input and output science frames. Next, it will try to find the master calibration frames listed in the reduction table, and will create these if they do not exist yet. After having collected all required calibration data the input frame is checked for its exposure type. Obviously, a dark frame should not be flat fielded and hence the processing options for the dark exposures should be set differently than for the science frames. After having determined the processing options the actual processing starts.





Pascal Ballester
Tue Mar 28 16:52:29 MET DST 1995