Survey Identifier: L384SP
Format Acronym: MGD77
Data Center File Number: 06050070
Parameters Surveyed Code: 55500
File Creation Date (yyyymmdd): 19870716
Source Institution: USGS Branch of Pacific Marine Geology
Country: United States
Platform Name: Lee
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): DAVE SCHOLL, RICK HERZER
Project: SOUTH PACIFIC / TONGA
Survey Departure Date (yyyymmdd): 19840402
Port of Departure: LEAVE SUVA FIJI
Survey Arrival Date (yyyymmdd): 19840501
Port of Arrival: ARRIVE SUVA
Navigation Instrumentation: NAV SAT/DOPPLER SONAR/INTGR. NAV
Bathymetry Instrumentation: 12KHZ
Additional Forms of Bathymetric Data: ANALOG
Magnetics Instrumentation: PROTON PRECESSION MAG
Additional Forms of Magnetics Data: ANALOG RECORDS
Gravity Instrumentation: SHIPBOARD GRAVITY METER
Additional Forms of Gravity Data: ANALOG RECORDS
Seismic Instrumentation: 3.5KHZ,SNGL CH.AIRGUN/24CHANNEL
Formats of Seismic Data: ANALOG PAPER ROLL
Topmost Latitude of Survey: -18
Bottommost Latitude: -27
Leftmost Longitude: +178
Rightmost Longitude: -174
General Digitizing Rate of Bathymetry: 016
General Digitizing Rate of Magnetics: 013
General Digitizing Rate of Gravity: 009
Additional Documentation: SONOBOUY
Number of Data Records: 51517
Min/Max Data Record:
Date: 1984 04 02
Latitude: -26.50575
Longitude: -179.99976
Bathymetry, 2- Way Traveltime: 001580
Bathymetry, Corrected Depth: 119.0
Magnetics Total Field, 1st Sensor: 366677
Magnetics Residual Field: -90380
Observed Gravity: 9770000
Free-Air Anomaly: -3523
Seismic Line Number: 2
Seismic Shot-Point Number: 41
Min/Max Data Record:
Date: 1984 05 01
Latitude: -18.13553
Longitude: +179.99999
Bathymetry, 2- Way Traveltime: 138500
Bathymetry, Corrected Depth: 10748.0
Magnetics Total Field, 1st Sensor: 489117
Magnetics Residual Field: +42674
Observed Gravity: 9772094
Free-Air Anomaly: +2270
Seismic Line Number: 19
Seismic Shot-Point Number: 9081