GENERAL SURVEY PARAMETERS: Gippsland BasinRECORDING SYSTEM : MSX / CRS STREAMERS : 7 X 5000 METERS STREAMER SEPARATION: 100 METERS TOTAL CHANNELS : 2800RECORDING FILTERS LOW CUT : 2 Hz/12 dB per oct. HIGH CUT : 206 Hz/264 dB per oct.STREAMER DEPTH : 9 METERS RECORD LENGTH : 6.5 SECONDSSHOT POINT INTERVAL: 18.75 METERSGROUP INTERVAL : 12.5 METERSSOURCE DEPTH : 8 METERS (DI s ARE 1 METER ABOVE THE GUN)SOURCE VOLUME : 3000 CUBIC INCHES X 2SOURCE SEPARATION : 50 METERSCENTER OF SOURCE TO CABLE REFERENCE POINT: 126 METERSCENTER OF SOURCE TO CABLE LAST GROUP : 5102 METERS---------------------------------------------------------------BOL WEATHER: SW @ 10 Knots SEAS: 1 m. PITCH: 75%EOL WEATHER: SW @ 10 Knots SEAS: 1 m. PITCH: 75% DUMMY FILES : na BOL NOISE FILE: 1 = 2 Hz. 2 = 8 Hz. EOL NOISE FILE: 2042 = 2 Hz. 2043 = 8 Hz.SPECIAL EVENTS:Cable 1 not used d/t bird line leakage.Gun 708 disabled BOL d/t electrical leakage.Bird 21 Cable 7 was heavy throughout the line.SP 2644-2599 and SP 2852-2553 with turn noise affecting the first 40 traces from cable 2-4.EXTERNAL NOISE FROM:AHEAD : NILASTERN: NILABEAM : NIL BAD BIRD DIsC(1): NILC(2): 1 deadC(3): NILC(4): NIL C(5): NILC(6): NILC(7): 1 deadBAD GUN DIsGS(1): NILGS(2): NILGS(3): NILGS(4): NILGS(5): NILGS(6): NILGS(7): NIL
GS(8): NIL
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BAD GUN PIsGS(1): NIL GS(2): NILGS(3): NIL GS(4): NILGS(5): NILGS(6): NIL GS(7): NIL GS(8): NILBOL NOISE: EOL NOISE: C(1): 5.0 C(1): 3.9 C(2): 4.3 C(2): 3.7 C(3): 4.1 C(3): 3.8 C(4): 3.6 C(4): 3.3 C(5): 3.5 C(5): 3.2 C(6): 3.9 C(6): 3.1
C(7): 4.9 C(7): 4.1 |
---------------------------NAVIGATION ------------------------3590 NAVIGATION TAPE NUMBER: G03A-P294-T10P2 FILE USED: G03A2000J141.0.p294NAVIGATION COMMENTS: Dead at SOLFloat GPS: T7R01Acoustics: S2T03, S3T01, S7T07 V1T01 Ranges poor/unuseableCompasses: S2C1, S7C1NAVIGATION ONLINE COMMENTS:Strm not being used in coverage d/t leakage on comms lineStrm 4 front acoustic affected by strm leakageHit by strong rip current at SP 2632, Robtrack going off track, also sudden change in feather swing south
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---------------NAVIGATION PROCESSING----------------FSP: 3886LSP: 1868FEATHER ANGLESMIN: -14.0MAX: 9.2PRIMARY NAVIGATION: Multifix 2 ( Vesref 3 ).GYRO USED IN PROCESSING: Gyro 2.ACOUSTICS NOT USED: 51101,52301,52707.FANBEAM NOT USED:GPS TARGETS NOT USED: 64201,64701,63207.COMPASSES NOT USED: 1201,1701.SPECIAL COMMENTS:Cable DI's Out : 1201,1701.Cable 1 deleted in Unavchk d/t bird line leakage. Unavchk cable 1 - 6 areactual cables 2 - 7.
Poor acoustic ranges for Cable 4 front network d/t streamer leakage. |
*********************LINE ACCEPTANCE*************************** *****(SIGNING IS ACCEPTANCE OF THE LINE)*****NAVIGATION PROCESSING:_________________________________________________QUALITY CONTROL_____________________________________________SEISMIC PROCESSING__________________________________________COORDINATOR_________________________________________________
CLIENT REP.__________________________________________________ |