Parameters

 Keyword  Position  Type       Description
 -------  --------  ----       -----------
 RAWDIR       1     CHAR      Directory containing header file
 ROOTNAME     2     CHAR      Rootname of header file - only asked
                              if more than one *_HDR file on directory.
 SUMFILE      3     CHAR      File to contain observation summary
 TIMLIST            LOGICAL   Produce a file of ON-OFF times
                              called XRT_TIMES.LIS ?
   Default = NO
 SHOWOBS            LOGICAL   Produce observation summary ?
   Default = YES
 DIR                LOGICAL   List the .OMD files on directory ?
   Default = YES