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Libraries

MOSCAL

MOSCAL

Name


  moscal

Purpose


  Apply standard CCD image correction steps to a raw group-FITS image.

Description


Category


  CCD data processing

Calling Sequence


  moscal,root,outdir,start,nframes,bias,dark,flat

Inputs


  root - Root of the file name (you must include . in the name).
  outdir - The directory to write the calibrated files to. Don't make
              this the same as the input directory.
  start - First frame number to read (integer or long).
              Start can also be a vector of explicit frame numbers to load.
              In this case, nframes need not be specified and in fact will
              be ignored.
  nframes - Number of frames to average.
  bias - Bias frame image name to subtract from each raw frame.
  dark - Dark frame image name to subtract from each raw frame.
  flat - Flat frame image name to subtract from each raw frame.

Optional Input Parameters


Keyword Input Parameters



  CROP = region of original image to save, default=no cropping.
                [x1,x2,y1,y2]
  DOALL - Process all images, if not set will only process OBJECT frames.
  EXCLUDE - Optional vector of image numbers that should be excluded from
                processing. Default is to include all frames in the range
                provided.
  EXPKEY = String - FITS keyword to read to get exposure time, $
              default = EXPTIME
  FLOAT - Flag, if set will cause the output data to be saved as float
            Otherwise, it will be saved as 16-bit integer data.
  OVERSCAN - column overscan region to use for frame bias level,
                default=no overscan subtraction.
  SKIP - Flag, if set will direct the program to skip any output files
            that are already present.

Outputs


  The calibrated images are written to outdir. Don't make this the same
  as the current directory!
  An additional file, 'root'+dgain, is written that contains the mean of
    each chip before and after the gaincor correction.

Keyword Output Parameters


Common Blocks


Side Effects


Restrictions


Procedure


Modification History


  2000/02/03, Written by Marc W. Buie, Lowell Observatory
  2000/02/28, MWB, added support for frame numbers > 999.
  2003/03/30 ,MWB, added fix from 0 DN pixels (usually from KPNO)
  2003/05/30, MWB, cosmetic changes to program internals plus added saving
                      the differential gain data to a file.
  2013/03/22, MWB, added FLOAT keyword
  2013/10/06, MWB, added SKIP keyword. Also, this program now skips any
                      image that does not have OBSTYPE='OBJECT'
  2015/06/11, MWB, added DOALL keyword



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