% @(#)calibrflux.hlq	17.1.1.1 (ESO-IPG) 01/25/02 17:53:23
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%.COPYRIGHT  (c)  1993 European Southern Observatory
%.IDENT      calibrflux.hlq
%.AUTHOR     23-MAR-93, IPG/ESO
%.KEYWORDS   MIDAS, help files, 
%.PURPOSE    On-line help file for the command: CALIBRA/FLUX
%.VERSION    1.0  PB : Creation, 23-MAR-93
%----------------------------------------------------------------
\se
SECTION./FLUX
\es\co
CALIBRA/FLUX					   PB  18-NOV-94
\oc\su
CALIBRA/FLUX  in  out  [resp]
	Correct an image for the instrumental response function
\us\pu
Purpose:    
            An extracted, rebinned, extinction corrected spectrum is 
            flux calibrated by multiplication by the instrumental 
            response function.
\up\sy
Syntax:     
            CALIBRA/FLUX  in  out  [resp]
\ys\pa
            in       = Input spectrum. It must be a 1D image in wavelength
                       space.
\ap\pa
            out      = Output flux calibrated spectrum.
\ap\pa
            response = Response image, as supplied by RESPONSE/LONG. \\
                       Session keyword : RESPONSE    Default: response.bdf
\ap\sa
See also: 
            EXTINCTION/LONG, INTEGRATE/LONG, RESPONSE/LONG, RESPONSE/FILTER,\\
            PLOT/FLUX, PLOT/RESPONSE
\as\no
Note:       
            1) The spectrum must be corrected for the atmospheric extinction
               (command EXTINCTION/LONG) before flux calibration.
 \\
            2) Before applying the response function, the spectra are 
               normalised to an exposure time of 1 second. The exposure
               time is taken from the descriptor O_TIME(7) (in seconds).
\on\exs
Examples:
\ex
            CALIBRA/FLUX  spec1  flux1 
\xe \sxe