COCORP INDIANA 1

Start Date 7/14/87 End Date 8/17/87 Date of Startup ?/?/?
Contractor SSC Crew Number VH
COCORP Honcho TOM PRATT
Startup Supervisor No One Surface Coverage 165.3km


PARAMETERS

Recording System DFSV No. of Channels 120 Geophone Group Spacing 100.1m Source Spacing 100.1m Source/Nearest Receiver Offset 3stations
Push/Pull PUSH Offend of Split OFFEND Noise Reject YES Vibrator Power 50&100% Stacking Fold 60
Sampling Interval 4 Antialias Filter 64hz Sweep Freq. Start 12hz Sweep Freq. End 50hz Sweep Duration 28seconds
Total Record Time 43seconds Correlated Record Length 15seconds Upsweep or Downsweep UP Number of Sweeps per VP 16 Notch Filter 60hz


Geophone Array

Geophone Type GSC-20D Natural Frequency of Geophone 8hz Number of Geophones per Station 24
Spacing Between Geophone Elements 4.3m Weighting Scheme llllllllllllllllllllllll Total Geophone Array Length 98.1


Source Array

Vibrator Type 5_FAILING_Y2400'S
Primary Array
No. of Vibrators5 Spacing Between Vibrators 30.5 m Source Moveup Between Sweeps 6.3 m
1st Vibrator starts (relative to the flag) 13.7 m Array Source Array Length 216.5 m
Backup Array
No. of Vibrators 4 Spacing Between Vibrators 39.7 m Source Moveup Between Sweeps 6.3 m
1st Vibrator starts (relative to the flag) 12.3 m Array Source Array Length 213.6 m