% @(#)load_cali.hlq	19.1 (ESO-IPG) 02/25/03 14:18:36 
%++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
%.COPYRIGHT  (c)  1995 European Southern Observatory
%.IDENT      load_cali.hlq
%.AUTHOR     PB, IPG/ESO
%.KEYWORDS   MIDAS, help files, LOAD/CALIBRATION
%.PURPOSE    On-line help file for the command: LOAD/CALIBRATION
%.VERSION    1.0  10-AUG-1995 : Creation, PB
%----------------------------------------------------------------
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SECTION./CALI
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LOAD/CALIBRATION   					10-AUG-1995 PB
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LOAD/CALIBRATION   
	display wavelength calibration result
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Purpose:    
            Displays the extracted and rebinned wavelength calibration frame
            for verification of the regularity of the order by order
            dispersion relations.
\up\sy
Syntax:     
            LOAD/CALIBRATION     [input]  [output]
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            input = Input image. By default the wavelength calibration
                    frame (Session keyword: WLC).
\ap\pa
            output = Output image. Default: middummr.bdf
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Note:       
            1) Display cuts are copied from the input image. The
               output image can be reloaded with new cuts for a better
               visualisation.
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            2) The wavelength range should regularly increase from 
               bottom to top on the displayed image.
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            3) If necessary the regularity of the dispersion relations
               can be improved by using the option WLCOPT=2D fitting a
               bivariate polynomial to the dispersion relation. Once
               a satisfactory calibration has been obtained with the
               method WLCMTD=PAIR, ANGLE or GUESS and WLCOPT=1D, new
               coefficients for the 2D solution are given with the
               sequence:  \\
                   SET/ECHELLE WLCOPT=2D WLCMTD=ORDER \\
                   IDENT/ECHELLE \\
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            4) Method WLCMTD=ORDER can also be used to recompute 
               the dispersion coefficients for another tolerance
               value (Session keyword TOL).
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See also: 
            LOAD/IDENT, PLOT/RESIDUAL, IDENT/ECHELLE, REBIN/ECHELLE, 
            LOAD/CALIB, PLOT/CALIB, PLOT/IDENT
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Examples:
\ex
            LOAD/CALIB  
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