SEGZ-Format-Definition-V1
# The preceding line is a mandatory identifier.
# It "has" to be the first line of the file or the file is not valid.

 SECTION SEGZ-parameters
# SECTION is the keyword identifier for the beginning of a section
# Comment - This header defines a normal SEGY file
  Name,            Length, Description
  Textual-header,    3200, SEGY Rev(0) Default length of character line header (bytes)
  File-header,        400, Length of binary line header (bytes)
  Trace-header,       240, Length of trace header (bytes)
  Name,              Type, Description
  TRACE_SAMP_FORMAT, IBM4, Format 1 in the binary header over rides the value in binary header
  Endianess,          BIG, Big Endian data suitable for SUN type computers
 ENDSECTION

 SECTION File-header-definition
  Name,           Byte,Type,Vector,Scalar,Addend,Description
  FILE_SAMP_RATE,   17,INT2,1,1,0,Sample Interval
  FILE_SAMP_NUM,    21,INT2,1,1,0,Number of data samples per trace or the maximum number of Samples
  TRACE_SAMP_FORMAT,25,INT2,1,1,0,Data sample format code 1=IBM floating point
 ENDSECTION

 SECTION Trace-header-definition
  Name,Byte,Type,Vector,Scalar,Addend,Description
  ITRACE_LINE,     1,INT4,1,1,0,Trace sequence no within line
  SOURCE_POINT,   17,IBM4,1,1,0,Energy source point number (shot peg)
  CDP,            21,INT4,1,1,0,Ensemble no. (CDP CMP CRP etc)
  HORI_NSUM,      33,INT2,1,1,0,No of horizontally summed traces in this trace
  SOURCE_DEPTH,   51,INT2,1,1,0,Depth of source below surface (+ve)
  CDP_X,          81,INT4,1,1,0,X-coordinate of ensemble (CDP) for this trace
  CDP_Y,          85,INT4,1,1,0,CPD coordinate (Y)
  TOTAL_STATIC,  103,INT2,1,1,0,Total static applied [ms]
  CDP_LATITUDE,  181,INT4,1,.000001,0,Latitude of CDP bin
  CDP_LONGITUDE, 185,INT4,1,.000001,0,Longitude of CDP bin
 ENDSECTION
ENDSEGZ