COCORP GEORGIA 4

Start Date 12/13/78 End Date 12/20/78 Date of Startup ?/?/?
Contractor GEOSOURCE Crew Number 6834
COCORP Honcho F COOK
Startup Supervisor No Body Surface Coverage 31.6km


PARAMETERS

Recording System MDS-10 No. of Channels 96 Geophone Group Spacing 67.1m Source Spacing 134.1m Source/Nearest Receiver Offset 8stations
Push/Pull PULL Offend of Split OFFEND Noise Reject YES Vibrator Power ???% Stacking Fold 24
Sampling Interval 8 Antialias Filter 31.25hz Sweep Freq. Start 8hz Sweep Freq. End 32hz Sweep Duration 30seconds
Total Record Time 50seconds Correlated Record Length 20seconds Upsweep or Downsweep UP Number of Sweeps per VP 16 Notch Filter 60hz


Geophone Array

Geophone Type ETL-EV_22B Natural Frequency of Geophone 7.5hz Number of Geophones per Station 24
Spacing Between Geophone Elements 8.5m Weighting Scheme ll22333322ll Total Geophone Array Length 93.9


Source Array

Vibrator Type 4_WABCO_Y1100,_1_WABCO_Y900
Primary Array
No. of Vibrators5 Spacing Between Vibrators 22.9 m Source Moveup Between Sweeps 7.6 m
1st Vibrator starts (relative to the flag) -11.2 m Array Source Array Length 205.6 m
Backup Array
No. of Vibrators 4 Spacing Between Vibrators 22.9 m Source Moveup Between Sweeps 7.6 m
1st Vibrator starts (relative to the flag) -22.7 m Array Source Array Length 182.7 m