MGL0804 ======= The following lines had no Navlog information in the SEG-D external headers. The number in bytes 9-12 of the SEG-Y trace header is the FFID number and the date/time is from the SEG-D general header. SEQ LINE 001 HESS_1 002 1E_1 003 1E_2 004 TRANSIT 1 018 OBS5 All other lines did have Navlog information in most of the SEG-D external headers. The number in bytes 9-12 of the SEG-Y trace header is the Spectra shot number and the date/time is the Spectra date/time. The msecs of the Spectra hi-res time are in bytes 167-168 of the SEG-Y trace header. For both SEG-Y files and SEG-D tar files the sequence number was used as the primary ID in the filenames. The scientists' line name was also included in the filename. Below is a table of SEGY files and line information. SEGY filename sequence line traces data sample record shot number id length interval length interval MGL0804.001.Hess_1_.001 001 Hess_1 636 traces, 8192 samples, 2000 usecs, 16.384 secs, 150m MGL0804.002.1E_1___.001 002 1E_1 636 traces, 8192 samples, 2000 usecs, 16.384 secs, 150m MGL0804.003.1E_2___.001 003 1E_2 636 traces, 8192 samples, 2000 usecs, 16.384 secs, 150m MGL0804.004.Transit.001 004 Transit_1 636 traces, 8192 samples, 2000 usecs, 16.384 secs, 150m MGL0804.005.Limon_1.001 005 Limon_1 636 traces, 8192 samples, 2000 usecs, 16.384 secs, 150m MGL0804.006.Limon_2.001 006 Limon_2 636 traces, 8192 samples, 2000 usecs, 16.384 secs, 50m MGL0804.006.Limon_2.002 MGL0804.006.Limon_2.003 MGL0804.006.Limon_2.004 MGL0804.007.Paris_1.001 007 Paris_1 636 traces, 8192 samples, 2000 usecs, 16.384 secs, 50m MGL0804.008.Paris_2.001 008 Paris_2 636 traces, 8192 samples, 2000 usecs, 16.384 secs, 50m MGL0804.009.Paris_3.001 009 Paris_3 636 traces, 8192 samples, 2000 usecs, 16.384 secs, 50m MGL0804.010.Paris_4.001 010 Paris_4 636 traces, 8192 samples, 2000 usecs, 16.384 secs, 50m MGL0804.011.1E_MCS_.001 011 1E_MCS 636 traces, 8192 samples, 2000 usecs, 16.384 secs, 50m MGL0804.011.1E_MCS_.002 MGL0804.012.1E_Para.001 012 1E_Para 636 traces, 8192 samples, 2000 usecs, 16.384 secs, 50m MGL0804.013.1_MCS2_.001 013 1E_MCS2 636 traces, 8192 samples, 2000 usecs, 16.384 secs, 50m MGL0804.013.1_MCS2_.002 MGL0804.014.HG1____.001 014 HG01 636 traces, 8192 samples, 2000 usecs, 16.384 secs, 50m MGL0804.015.HG2____.001 015 HG02 636 traces, 8192 samples, 2000 usecs, 16.384 secs, 50m MGL0804.016.HG3____.001 016 HG03 636 traces, 8192 samples, 2000 usecs, 16.384 secs, 50m MGL0804.016.HG3____.002 MGL0804.017.HG4____.001 017 HG04 636 traces, 8192 samples, 2000 usecs, 16.384 secs, 50m MGL0804.017.HG4____.002 MGL0804.018.HG5____.001 018 HG05 636 traces, 8192 samples, 2000 usecs, 16.384 secs, 50m MGL0804.018.HG5____.002 MGL0804.018.OBS5___.001 018 OBS5 636 traces, 512 samples, 2000 usecs, 1.024 secs, 20s MGL0804.019.HG6____.001 019 HG06 240 traces, 16384 samples, 500 usecs, 8.192 secs, 25m MGL0804.019.OBS6___.001 019 OBS6 240 traces, 16384 samples, 500 usecs, 8.192 secs, 20s MGL0804.020.HG7____.001 020 HG07.001 636 traces, 4096 samples, 4000 usecs, 16.384 secs, 50m MGL0804.020.HG7____.002 020 HG07.002 636 traces, 8192 samples, 2000 usecs, 16.384 secs, 50m MGL0804.021.HG8____.001 021 HG08 636 traces, 8192 samples, 2000 usecs, 16.384 secs, 50m MGL0804.021.HG8____.002 MGL0804.021.OBS8___.001 021 OBS8 636 traces, 8192 samples, 2000 usecs, 16.384 secs, 20s MGL0804.022.HG9____.001 022 HG09 636 traces, 8192 samples, 2000 usecs, 16.384 secs, 25m MGL0804.022.OBS9___.001 022 OBS9 636 traces, 8192 samples, 2000 usecs, 16.384 secs, 20s MGL0804.023.HG10___.001 023 HG10 636 traces, 4096 samples, 2000 usecs, 8.192 secs, 25m MGL0804.023.HG10___.002 MGL0804.023.HG10___.003 MGL0804.024.HG11___.001 024 HG11 636 traces, 8192 samples, 2000 usecs, 16,384 secs, 50m