Topic:
How to dump a 16-bit integer header word.

Description:
The CDP number is in Header words 5-6, in 16-bit integer format, how can it be 
dumped?

Solution:
In IESX> Data Manager> Load Seismic> SEGY Dump..., there is an option to specify 
the format of any header words under "Trace Header Locations...".

From the "SEGY Dump..." menu, click on  "Trace Header Locations...", then under
the "CDP Number" parameter, set Start Byte to -> 5, and Format to ->
IBM (16 bit int.).  Then blank out the parameters you do not want dumped.

When doing the dump, the correct value will appear on the dump just above the
trace header, with the title:
Trace header parameters specified by location and format:

Here is an Example:

Trace header parameters specified by location and format: 
CDP:                            527.000 
    
   1-4    Trace number line :            70
   9-12   Field record number:         1932
  13-16   Field trace number:          1932
  21-24   CDP ensemble:                 429
  25-28   CDP trace number :             69
  29-30   Trace ID code:                  1
 115-116  Number of samples:             876
 117-118  Sample interval(us):          4000
--------------------------------------------------------------------------------
     +0.00 :  -9.1093750E+00   +0.0000000E+00   +1.2007812E+01 
--------------------------------------------------------------------------------
  
Trace header parameters specified by location and format: 
CDP:                            528.000 
  
 
   1-4    Trace number line :            70
   9-12   Field record number:         2001
  13-16   Field trace number:          2001
  21-24   CDP ensemble:                 429
  25-28   CDP trace number :             69
  29-30   Trace ID code:                  1
 115-116  Number of samples:             876
 117-118  Sample interval(us):          4000
--------------------------------------------------------------------------------
     +0.00 :  -1.0968750E+01   +2.1093750E+00   +1.1812500E+01 
--------------------------------------------------------------------------------





Last Modified on: 13-JUN-00