ACQUISITION REPORT Sequence-0013
 Survey:  
  Client Bass Strait Oil Company
  Area Vic/P42 Gippsland Basin
  Vessel GECO_BETA
  JobNumber 9226
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename VP421072P013
  Preplot VP421072
  Direction 193.0°
  SOL Date 23:33:30utc 30-Jul-2002
  EOL Date 03:10:11utc 31-Jul-2002
 Attributes:  
   Wind Force 5.0 [knots] Dir NE
   Swell Height 1.0 [meters] Dir E
   Propellor rpm 137 [avg]  
   Propellor pitch 90 [avg]  
       
  SOL EOL  
   Waterdepth 61.3 69.0 [meters]
   Bottomspeed  4.35 4.9 [knots]
   Featherangle port -3.0 sb +4.8 [deg]
   Cable noise 5.56 6.4 [µBar rms]
   Lowcut filter 3 3 [hz]
   Filter slope 18 18 [dB]
   Filter Slope 18 18  
   Port Volume 3542.0 3542.0  
   Stbd Volume 3542.0 3512.0  

Source Configuration
Source Position Inline Crossline Nominal Nom. Vol. Subarray Gun
Number   Offset [m] Offset [m] Depth [m] [inch ³] Count Count
1 STBD -345.0 25.0 -7.0 3542.0 3 24
2 PORT -345.0 -25.0 -7.0 3542.0 3 24

Streamer Configuration
Streamer Position Inline Crossline Nominal Length Type Group Channel Front-Tail
Number   Offset [m] Offset [m] Depth [m] [m]   Interval [m] Count  
1 STBD -520.0 350.0 -8.0 4600 Nessie-3 12.5 368 0001-0368
2 STBD -520.0 250.0 -8.0 4600 Nessie-3 12.5 368 0369-0736
3 STBD -520.0 150.0 -8.0 4600 Nessie-3 12.5 368 0737-1104
4 STBD -520.0 50.0 -8.0 4600 Nessie-3 12.5 368 1105-1472
5 PORT -520.0 -50.0 -8.0 4600 Nessie-3 12.5 368 1473-1840
6 PORT -520.0 -150.0 -8.0 4600 Nessie-3 12.5 368 1841-2208
7 PORT -520.0 -250.0 -8.0 4600 Nessie-3 12.5 368 2209-2576
8 PORT -520.0 -350.0 -8.0 4600 Nessie-3 12.5 368 2577-2944

Recording Configuration
Channel Descr. Recording Data RecLen Sample Chan Chan # Chan Chan # Filter
Set   Format Reduction [ss ¹] Int. [ms] In In Out Out Delay [ms]
1 NFH SEGD 8015, Rev.2 NONE 6.0 0.25 0036 0001-0036 0036 0001 - 0036 0.00
2 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 0001-0368 0368 0001 - 0368 5.60
3 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 0369-0736 0368 0369 - 0736 5.60
4 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 0737-1104 0368 0737 - 1104 5.60
5 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 1105-1472 0368 1105 - 1472 5.60
6 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 1473-1840 0368 1473 - 1840 5.60
7 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 1841-2208 0368 1841 - 2208 5.60
8 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 2209-2576 0368 2209 - 2576 5.60
9 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 2577-2944 0368 2577 - 2944 5.60

Production
  Shotpoint File Time [utc]
   SOL Noise Record(s)   990 - 991  
   SOL Dummy Record(s) 992 - 1021 992 - 1021 23:29:16 - 23:33:22
   FSP Start of Line 1022 1022 23:33:30
   MSP 1211 1211 23:59:54
   LSP End of Line 2647 2647 03:10:11
   EOL Dummy Record(s) 2648 - 2670 2648 - 2670 03:10:19 - 03:13:17
   EOL Noise Record(s)   2952 - 2953  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1022 - 2647 1022 - 2647 23:33:30-03:10:11 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth 8.0mtr.    
   Recording QC Frontsheet Set 1. Gundepth calibrated at atmospheric pressure 1032mB, pressure now 1027mB.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  990 - 1419 990 - 1419 2 52  
  1420 - 1849 1420 - 1849 1 53  
  1850 - 2279 1850 - 2279 2 54  
  2280 - 2953 2280 - 2953 1 55  
Stream 2
   Shot(s) Files Deck Reel Remark
  990 - 1419 990 - 1419 3 52  
  1420 - 1849 1420 - 1849 4 53  
  1850 - 2279 1850 - 2279 3 54  
  2280 - 2953 2280 - 2953 4 55  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL- 109 Killed traces  
ALL     ALL 161, 304 Noisy Trace(s)  
ALL     ALL 1492, 2497 Weak Trace(s) Trace signal less than -6dB of nominal value
1076     1076 ALL External header lost  
1259     1259 ALL External header lost  
Warning
Shot(s)     File(s) Trace(s) Type Remark
1138     1138 ALL Gun timing error Gun 5-4 error (ms) : 1.1
Comment
Shot(s)     File(s) Trace(s) Type Remark
2648     2648 ALL Guns disabled Stop firing due to whale sighttings.


 List of used abbreviations:
     SOL/EOL  Start/End of line. 
     FSP/LSP  First/Last shotpoint of the line. 
     FCSP/LCSP  First/Last chargeable shotpoint
     MSP  Midnight (last) shotpoint of the day
     FGSP/LGSP  First/Last Good Shotpoint
     FOSP/LOSP  First/Last Overlap Shotpoint
     FSP/LSP R/O  First/Last Shotpoint Runout
   
     Deg  Degrees: e[0,360]
     rev  Revolutions
     utc  Universal Time Coordinated
     SPs  Shotpoints
     CMPs  Common midpoints
     NTBP  Not to be processed
     SI  Seismic interference
TRILOGY INFORMATION MANAGER - ACQUISITION REPORT - GENERATED 15:07:22utc 31-Jul-2002