Survey Identifier: L677EG
Format Acronym: MGD77
Data Center File Number: 06050014
Parameters Surveyed Code: 55505
File Creation Date (yyyymmdd): 19870521
Source Institution: USGS Branch of Pacific Marine Geology
Country: United States
Platform Name: Lee
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): Terry Bruns
Project: EASTERN GULF OF ALASKA
Survey Departure Date (yyyymmdd): 19770613
Port of Departure: LV KETCHIKAN, ALASKA
Survey Arrival Date (yyyymmdd): 19770630
Port of Arrival: AR KODIAK, ALASKA
Navigation Instrumentation: SHIPBOARD INTEGRATED NAV DOPPLER SONAR N
Geodetic Datum/Position: AV MINIRANGER NAVIGATION LORAN C RHO R
Bathymetry Instrumentation: 3.5 KHZ 12 KHZ DIGITRAK BATHYMETRY
Gravity Instrumentation: BURG SEISMIC SYSTEM
Seismic Instrumentation: 24 CHANNEL SEIS (GUS) SINGLE CHAN.AIRGUN
Topmost Latitude of Survey: +61
Bottommost Latitude: +54
Leftmost Longitude: -152
Rightmost Longitude: -131
General Digitizing Rate of Bathymetry: 014
General Digitizing Rate of Magnetics: 010
General Digitizing Rate of Gravity: 011
Number of Data Records: 23113
Min/Max Data Record:
Date: 1977 06 13
Latitude: +54.62033
Longitude: -151.81000
Bathymetry, 2- Way Traveltime: 000300
Bathymetry, Corrected Depth: 22.0
Magnetics Total Field, 1st Sensor: 557740
Magnetics Total Field, 2nd Sensor: 537417
Magnetics Residual Field: -04671
Observed Gravity: 9814672
Free-Air Anomaly: -0903
Seismic Line Number: 000
Seismic Shot-Point Number: 44
Min/Max Data Record:
Date: 1977 06 30
Latitude: +60.11619
Longitude: -131.62688
Bathymetry, 2- Way Traveltime: 062960
Bathymetry, Corrected Depth: 4718.0
Magnetics Total Field, 1st Sensor: 588350
Magnetics Total Field, 2nd Sensor: 587895
Magnetics Residual Field: +19118
Observed Gravity: 9819527
Free-Air Anomaly: +1373
Seismic Line Number: 950
Seismic Shot-Point Number: 1768