COCORP Ohio OHIO

Start Date 1 End Date 8/21/87 Date of Startup 10/19/87
Contractor SSC Crew Number VH
COCORP Honcho DFSV 60
Startup Supervisor 277.6 TOM Surface Coverage PRATTkm


PARAMETERS

Recording System 120 No. of Channels 100.6 Geophone Group Spacing 100.6m Source Spacing 45m Source/Nearest Receiver Offset PUSHstations
Push/Pull SPLIT Offend of Split YES Noise Reject 50&100% Vibrator Power 16 Stacking Fold 4
Sampling Interval 45 Antialias Filter 10hz Sweep Freq. Start 4hz Sweep Freq. End 28hz Sweep Duration 43seconds
Total Record Time 15seconds Correlated Record Length UPseconds Upsweep or Downsweep % Number of Sweeps per VP 20-D Notch Filter Y2400'Shz


Geophone Array

Geophone Type 8 Natural Frequency of Geophone 24hz Number of Geophones per Station 4.3
Spacing Between Geophone Elements llllllllllllllllllllllllm Weighting Scheme 98.1 Total Geophone Array Length 5


Source Array

Vibrator Type FAILING
Primary Array
No. of Vibrators60 Spacing Between Vibrators 5 m Source Moveup Between Sweeps 9.2 m
1st Vibrator starts (relative to the flag) 6.3 m Array Source Array Length -28.8 m
Backup Array
No. of Vibrators 216.5 Spacing Between Vibrators 4 m Source Moveup Between Sweeps 9.1 m
1st Vibrator starts (relative to the flag) 6.3 m Array Source Array Length -33.5 m