ACQUISITION REPORT Sequence-0843
 Survey:  
  Client  
  Area  
  Vessel  
  JobNumber  
  Survey Type  
   
 Sequence  
  Linename G01A7240PMA843
  Preplot G01A7240MA
  Direction 288.0°
  SOL Date 07:01:05utc 07-May-2002
  EOL Date 07:12:06utc 07-May-2002
 Attributes:  
   Wind Force 0.0 [knots] $(wind_dir)
   Swell Height 1.0 [meters] Dir S
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 54.4 54.8 [meters]
   Bottomspeed  5.0 4.9 [knots]
   Featherangle port -0.2 0.0 [deg]
   Cable noise 6.6 0.0 [µBar rms]
   Lowcut filter 3 3 [hz]
   Filter slope 18 18 [dB]
   Port Volume 3542 3542  
   Stbd Volume 3307 3307  

Source Configuration
Source Position Inline Crossline Nominal Nom. Vol. Subarray Gun
Number   Offset [m] Offset [m] Depth [m] [inch ³] Count Count
0 STBD -345.0 25.0 -6.0 0.0 0 0
0 STBD -345.0 -25.0 -6.0 0.0 0 0

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 -7.0 4600 Nessie-3 12.5 368 0001-0368
2 STBD -520.0 250.0 -7.0 4600 Nessie-3 12.5 368 0369-0736
3 STBD -520.0 150.0 -7.0 4600 Nessie-3 12.5 368 0737-1104
4 STBD -520.0 50.0 -7.0 4600 Nessie-3 12.5 368 1105-1472
5 PORT -520.0 -50.0 -7.0 4600 Nessie-3 12.5 368 1473-1840
6 PORT -520.0 -150.0 -7.0 4600 Nessie-3 12.5 368 1841-2208
7 PORT -520.0 -250.0 -7.0 4600 Nessie-3 12.5 368 2209-2576
8 PORT -520.0 -350.0 -7.0 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)   2802 - 2803  
   SOL Dummy Record(s) 2804 - 2833 2804 - 2833 06:57:26 - 07:00:58
   FSP Start of Line 2834 2834 07:01:05
   MSP      
   LSP End of Line 2925 2925 07:12:06
   EOL Dummy Record(s)      
   EOL Noise Record(s)   3061 - 3062  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2834 - 2925 2834 - 2925 07:01:05-07:12:06 Prime 16 Scratched  
 Remarks:      
   Navigation Streamer Depth 7m, NAVRT External Header Block defines Job No. 9170C, Line scratched due to numerous guns failing    
   Recording QC Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1025mB. Low frequency strumming Str 6 channels 1841 - 1875. Occassional burst of swell noise present on records,approx 2-3 µB, affecting 5 % of traces.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  2802 - 3062 2802 - 3062 1 10043  
Stream 2
   Shot(s) Files Deck Reel Remark
  2802 - 3062 2802 - 3062 3 10043  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1633 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL 337, 349, 791, 1553 Spiking Trace(s)  
ALL     ALL 1857 Noisy Trace(s)  
ALL     ALL 744, 2764 Killed traces  
2884     2884 ALL Gun timing error Gun 5-2 error (ms) : -1.8
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1316 PS Test Fails PS test
Comment
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL-2917 ALL Gun disabled Gun 5-5. Source volume at shot 2834 : 3307 cu.in.
2889     2889 ALL Gun not fired Gun-status lost for gun 2-6
2889     2889 ALL Gun not fired Gun-status lost for gun 2-7


 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 03:11:53utc 08-May-2002