Survey Identifier: L475BS
Format Acronym: MGD77
Data Center File Number: 06050002
Parameters Surveyed Code: 55505
File Creation Date (yyyymmdd): 19870303
Source Institution: USGS Branch of Pacific Marine Geology
Country: United States
Platform Name: Lee
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): MIKE MARLOW, ALAN COOPER
Project: BERS75XA SOUTH EAST BERING SEA
Survey Departure Date (yyyymmdd): 19750906
Port of Departure: DUTCH HARBOR, ALASKA
Survey Arrival Date (yyyymmdd): 19750924
Port of Arrival: DUTCH HARBOR, ALASKA
Formats of Seismic Data: SEE ADD. DOC.
Topmost Latitude of Survey: +58
Bottommost Latitude: +54
Leftmost Longitude: -170
Rightmost Longitude: -165
General Digitizing Rate of Bathymetry: 019
General Digitizing Rate of Magnetics: 017
General Digitizing Rate of Gravity: 019
Additional Documentation: CDP SECTIONS,24 FOLD SUMMATION SEPIA OR BLACKLINE 3 IN/SEC AND 20 TR/IN, SHOT POINT DATA ON MICROFICHE, SHOT POINTS ON MAG TAPE
Number of Data Records: 7399
Min/Max Data Record:
Date: 1975 09 07
Latitude: +54.02090
Longitude: -169.05780
Bathymetry, 2- Way Traveltime: 000930
Bathymetry, Corrected Depth: 70.0
Magnetics Total Field, 1st Sensor: 497411
Magnetics Residual Field: -07197
Observed Gravity: 9813964
Free-Air Anomaly: -0065
Seismic Line Number: 001
Seismic Shot-Point Number: 0
Min/Max Data Record:
Date: 1975 09 18
Latitude: +57.21860
Longitude: -165.50410
Bathymetry, 2- Way Traveltime: 030470
Bathymetry, Corrected Depth: 2253.0
Magnetics Total Field, 1st Sensor: 528556
Magnetics Residual Field: +10431
Observed Gravity: 9817252
Free-Air Anomaly: +1173
Seismic Line Number: 008
Seismic Shot-Point Number: 4437