Special Event Log
Party :Monarch
Seq#: 179
Survey: 9269
Dir: 287
Client :ExxonMobil
FSP :3886
Line : G03A2192A179
LSP :1868
Comments
GENERAL SURVEY PARAMETERS: Gippsland Basin
RECORDING SYSTEM : MSX / CRS
STREAMERS : 7 X 5000 METERS
STREAMER SEPARATION: 100 METERS
TOTAL CHANNELS : 2800
RECORDING 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 SECONDS
SHOT POINT INTERVAL: 18.75 METERS
GROUP INTERVAL : 12.5 METERS
SOURCE DEPTH : 8 METERS (DI s ARE 1 METER ABOVE THE GUN)
SOURCE VOLUME : 3000 CUBIC INCHES X 2
SOURCE SEPARATION : 50 METERS
CENTER OF SOURCE TO CABLE REFERENCE POINT: 126 METERS
CENTER OF SOURCE TO CABLE LAST GROUP : 5102 METERS
---------------------------------------------------------------
BOL WEATHER: SW @ 20 Knots SEAS: 3.0 m. PITCH: 76%
EOL WEATHER: SW @ 20 Knots SEAS: 3.0 m. PITCH: 76%
DUMMY FILES : N/A
BOL NOISE FILE: 1 = 2 Hz.
2 = 8 Hz.
EOL NOISE FILE: 2073 = 2 Hz.
2074 = 8 Hz.
SPECIAL EVENTS:
SP 3720 cable 5 bird 14 disabled,causing bird 13 to drop out.
Bird 5-9 on Cable 7 deep with max depth 13.5m from SP 2310-2187
Bird 5-9 on Cable 7 deep with max depth 13.5m from SP 2090-EOL
EXTERNAL NOISE FROM:
AHEAD : NIL
ASTERN: From SP 1920-EOL ship noise less than 5uB
ABEAM : NIL
BAD BIRD DIs
C(1): NIL
C(2): 1 dead
C(3): 15 bad D.I.
C(4): NIL
C(5): 14 disabled SP 3720
C(6): NIL
C(7): 1 dead
BAD GUN DIs
GS(1): NIL
GS(2): NIL
GS(3): NIL
GS(4): NIL
GS(5): NIL
GS(6): 608 disabled BOL
GS(7): NIL
GS(8): NIL
BAD GUN PIs
GS(1): NIL
GS(2): NIL
GS(3): NIL
GS(4): NIL
GS(5): NIL
GS(6): NIL
GS(7): NIL
GS(8): NIL
BOL NOISE: EOL NOISE:
C(1): 6.0 C(1): 10.1
C(2): 4.7 C(2): 10.1
C(3): 7.1 C(3): 10.1
C(4): 3.6 C(4): 9.4
C(5): 3.5 C(5): 9.4
C(6): 3.5 C(6): 9.2
C(7): 4.3 C(7): 9.8
EOL Noise recorded with ship noise comming from stern.
---------------------------NAVIGATION ------------------------
3590 NAVIGATION TAPE NUMBER: G03A-P294-T12
P2 FILE USED: G03A2192A179.0.p294
NAVIGATION COMMENTS:
Dead at SOL
Float GPS: T7R01
Acoustics: S3T01, S7T07
Compasses: S2C1, S7C1
NAVIGATION ONLINE COMMENTS:
SP 3420 - SP 3390 : Steering manually by bridge, moving port with 0.6 kts VC, d/t strong anomali current affecting robtrack steering. Leaving hole for infill pass, Total Feather Mismatch
---------------NAVIGATION PROCESSING----------------
FSP: 3886
LSP: 1868
FEATHER ANGLES
MIN: -6.4
MAX: 11.2
PRIMARY NAVIGATION: MFIX_2_Optus
GYRO USED IN PROCESSING: Gyro 2
ACOUSTICS NOT USED: 52301 52707
GPS TARGETS NOT USED: 64201 64701 63103 63107 63205
COMPASSES NOT USED: 1201 1514 1610 1701
SPECIAL COMMENTS:
Cable DI out: 1201 1315 1514 1701
Cable DI's 1203-1208 go deep, DI's 1606-1610 & 1705-1710 erratic.
PosNet 1 DOP spikes during line.
*********************LINE ACCEPTANCE***************************
*****(SIGNING IS ACCEPTANCE OF THE LINE)*****
NAVIGATION PROCESSING:_________________________________________________
QUALITY CONTROL_____________________________________________
SEISMIC PROCESSING__________________________________________
COORDINATOR_________________________________________________
CLIENT REP.__________________________________________________
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