RDDESCR (Oct95)                ftools.xte                RDDESCR (Oct95)



NAME
    rddescr -- obtain channel and gain information  from  an  input  XTE
    .pha file.
    
    
USAGE
    rddescr phafil chanfil
    
    
DESCRIPTION
    This  task  reads  the  header  of  an  input  .pha file and outputs
    information to various ascii files.   These  ascii  files  serve  as
    inputs to other ftools.  The information derived from the header is:
    
    The Channel Descriptor
        The  Channel  Descriptor  is  parsed  into  an output ascii file
        having the format of CHANPHA.  This file is  useful  for  (among
        other  things)  providing  input  to  RBNRMF  for rebinning .rmf
        files.
    
    The EDS Gain/Offset Information
        The header is searched for the GAINAPP keyword, which  indicates
        whether  the  EDS gain and offset have been applied to the data.
        If so, the gain and offset values are read  for  each  PCU,  and
        converted  into  an  format  similar  to  CHANPHA.  The names of
        these ascii files are pcu<n>_shft.txt, where n = 0 -  4.   These
        files  may be used as input to GCORRMF for applying the gain and
        offset to response matrices.
        
        
PARAMETERS
    
    phafil [file name]
        The name of the input .pha file.
    
    chanfil [file name]
        The name of the output ascii file.  The format of this file  can
        be read by RBNRMF.
    
    (chatter = 10) [integer]
        The standard chatter parameter.
    
    (clobber = yes) [string]
        Delete  output  file  if  it  exists ?  (If clobber=no, override
        with !filename)
    
    
EXAMPLES
    1. rddescr phafil=std2many.pha chanfil=chan.txt
    
    Reads the channel descriptor from the file std2many.pha and outputs an
    ascii file chan.txt
    
    .ih    
    NOTES:
    .ih
    BUGS
    .ls  RDDESCR.V1*
    .le
    .ls Please report problems to xtehelp@athena.gsfc.nasa.gov.
    .le
    .ih
    SEE ALSO
    PGAINOFF, RBNRMF, GCORRMF