NAME

     OPSTDI  - recombines the Tp scan data and the semblance data
     output by opstd into the multiplexed format expected by pro-
     grams opstk and opstr.

SYNOPSIS

     opstd [ -Nntap ] [ -N2stap ] [ -Ootap ] [ -? ]

DESCRIPTION

     OPSTDI recombines the Tp scan data and  the  semblance  data
     output by program opstd into a single data set in the format
     expected by program opstk and opstr.

  Command line arguments
     -N1 ntap
          Enter the name data set containing the Tp  scan  panels
          created  output  by  program  opstd  after  typing -N1,
          unless the input is from a pipe in which case  the  -N1
          entry must be omitted.


     -N2 stap
          Enter the name of the data set containing the semblance
          panels  created  by  program  OPSTD.   This data set is
          required.  Default:  Fatal error.


     -O otap
          Enter the output data  set  name  or  file  immediately
          after typing -O.  This output file is not required when
          piping the output to another process.  The output  from
          program  OPSTDI  contains Tp scan and semblance data in
          trace-orcer  multiplexed  format.    This   format   is
          required by program opstk and opstr.

     -?   Enter the command line  argument  '-?'  to  get  online
          help.   The program terminates after the help screen is
          printed.

DISCUSSION

     Operations

     OPSTDI makes possible the independent processing of  Optical
     Stack  scan  and/or semblance data by inverting the demulti-
     plex operation performed by program OPSTD.  The  recombined,
     processed  data may then be passed to the stack picking pro-
     gram  opstk  or  to  the  X-T  data  reconstruction  program
     opstr .

REFERENCES

     de Bazelarie, E., 1988, Normal  moveout  revisited:  Inhomo-
     geneous  media  and  curved interfaces, Geophysics, Vol. 53,
     143-157.

     Arnold, Richard H. and Semaan, Mars E., 1990, Implementation
     of the Optical Stack Method, SEG Expanded Abstracts, Vol II,
     San Francisco.

BUGS

     unknown

SEE ALSO

     opstd, opstr, opstk, opstf, opstcv

AUTHOR

     Richard Crider, ES&S

COPYRIGHT

     copyright 2001, Amoco Production Company
               All Rights Reserved
          an affiliate of BP America Inc.