TOPCON

For BISON data. The program combines *.nez survey file (Northing, Easting, Elevation) and Bison files from a Bison seismograph to produce *.xyz header files. The program BHED 10.1.4 then reads the *.xyz files and uploads them into the *.seg files. The command line arguments are:

topcon  topf bisf lid shdp is nch vp1 vpn ir esh isa isv ira ita
  
 topf     =file name of topcon .nez file  
 bisf     =file name of Bison file with data
 lid      =line ID   
 shdp     =shot depth 
 is       =shot location number 
 nch      =number of channels (<48) 
 vp1      =geophone location number channel 1 
 vpn      =geophone location number channel nchanl 
 ir       =shot record number 
 esh      =elevation adjustment to be added 
 isa      =source polarization azimuth (deg.) 
 isv      =source polarization vertical (deg.) 
 ira      =reference polarization R-axis (deg.) 
 ita      =reference polarization T-axis (deg.)