ACQUISITION REPORT Sequence-0065
 Survey:  
  Client  
  Area  
  Vessel  
  JobNumber  
  Survey Type  
   
 Sequence  
  Linename G01A3072B065
  Preplot G01A3072
  Direction 198.0°
  SOL Date 16:50:00utc 22-Nov-2001
  EOL Date 17:58:39utc 22-Nov-2001
 Attributes:  
   Wind Force 30.0 [knots] Dir NE
   Swell Height 2.0 [meters] Dir NE
   Propellor rpm 122 [avg]  
   Propellor pitch 95 [avg]  
       
  SOL EOL  
   Waterdepth 50.0 51.0 [meters]
   Bottomspeed  5.1 4.9 [knots]
   Featherangle sb +9.3 sb +3.2 [deg]
   Cable noise 8.0 0.0 [µBar rms]
   Lowcut filter 3 0 [hz]
   Filter slope 18 0 [dB]

Source Configuration
Source Position Inline Crossline Nominal Nom. Vol. Subarray Gun
Number   Offset [m] Offset [m] Depth [m] [inch ³] Count Count

Streamer Configuration
Streamer Position Inline Crossline Nominal Length Type Group Channel Front-Tail
Number   Offset [m] Offset [m] Depth [m] [m]   Interval [m] Count  

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]

Production
  Shotpoint File Time [utc]
   SOL Noise Record(s)      
   SOL Dummy Record(s)      
   FSP Start of Line 3168   16:50:00
   MSP      
   LSP End of Line 2602 2602 17:58:39
   EOL Dummy Record(s)      
   EOL Noise Record(s)      
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    3168 - 3159   -    -  Reshoot 16 Valid Overlap Sp's
    3158 - 2612   - 2612  -17:57:27 Reshoot 16 Valid Reshoot seq 56 d/t Whales
    2611 - 2602 2611 - 2602 17:57:34-17:58:39 Reshoot 16 Valid Overlap Sp's
 Remarks:      
   Navigation Streamer depth at 7.0m    
   Recording QC NEW FRONSHEET SET - NOW 4. Some streamer/gun/line parameters missing this log only d/t Tim Database crash. Filter delay 5.6ms. Gundepth calibrated at atmospheric pressure 1004mB, pressure now 1016mB. Str 8 Bird 1 mask on External Header, occasionally deep, 8.1m. ARRAY 2 MANIFOLD NOW FIXED. No EOL noise test d/t triacq rc hang.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  3180 - 2751 3180 - 2751 2 264  
  2750 - 2602 2750 - 2602 1 265  
Stream 2
   Shot(s) Files Deck Reel Remark
  3180 - 2751 3180 - 2751 4 264  
  2750 - 2602 2750 - 2602 3 265  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 304 Noisy Trace  
3071       ALL Gun Timing Error Gun 3-3 sync error 5.4 ms
3069       ALL Gun Timing Error Gun 3-3 sync error 2.1 ms
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2301 Fails Crossfeed Fails Crossfeed test: 2301
ALL     ALL 1191, 2164, 2806 Weak Traces Weak trace: 1191, 2164, 2806 more than -6 dB down
ALL     ALL 1-7, 9, 12, 369-373, 737-745, 1109, 1112, 1841-1842, 1844, 2209-2214, 2216-2217, 2577, 2585 Slope alarm > 5% of total line
2919-2603     2603 ALL Slope overload  
2919-2902       NONE Bird depth out of spec Bird C4-3
2907       NONE Bird depth out of spec Bird C3-11
2904-2902       NONE Bird depth out of spec Bird C4-4
2900-2887     2900-2887 NONE Bird depth out of spec Bird C4-3
2897-2894     2897-2894 NONE Bird depth out of spec Bird C4-4
2647     2647 ALL Gun timing error Gun 3-7 error (ms) : -1.5
2645     2645 ALL Gun timing error Gun 3-7 error (ms) : -1.5
2643     2643 ALL Gun timing error Gun 3-7 error (ms) : -1.3
Comment
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL ALL Gun Depths All gun depths occ erratic d/t swell
ALL     ALL ALL Swell Noise Swell noise seen on all cables approx 5-10 %


 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 19:30:44utc 22-Nov-2001