Survey Identifier: ELT39
Format Acronym: MGD77
Data Center File Number: 01020039
Parameters Surveyed Code: 55513
File Creation Date (yyyymmdd): 19890705
Source Institution: LAMONT-DOHERTY GEOLOGICAL OBSERVATORY
Country: USA
Platform Name: ELTANIN
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): RUDI MARKL
Project: CRUISE 039
Funding: NSF
Survey Departure Date (yyyymmdd): 19690608
Port of Departure: Melbourne, Australia
Survey Arrival Date (yyyymmdd): 19690804
Port of Arrival: Auckland, New Zealand
Navigation Instrumentation: SATELLITE AND DEADRECKONING
Geodetic Datum/Position: SATELLITE AND DEADRECKONING
Bathymetry Instrumentation: PDR 12KHZ WIDEBEAM 60 DEGREE 1/SEC SWEEP
Additional Forms of Bathymetric Data: ANALOG DATA
Magnetics Instrumentation: VARIAN PROTON PRECESSION
Additional Forms of Magnetics Data: ANALOG DATA
Gravity Instrumentation: GRAF-ASKANIA GSS-2-25
Additional Forms of Gravity Data: ANALOG DATA
Seismic Instrumentation: L-DGO 26.3CU IN AIRGUN,STREAMER,DRUM REC
Formats of Seismic Data: TWO-2CHANNELS, SHEET RECORDS
Topmost Latitude of Survey: -32
Bottommost Latitude: -58
Leftmost Longitude: +125
Rightmost Longitude: +176
General Digitizing Rate of Bathymetry: 050
General Sampling Rate of Bathymetry: 1/SECOND
Assumed Sound Velocity: 14630
Bathymetric Datum Code: 00
General Digitizing Rate of Magnetics: 050
General Sampling Rate of Magnetics: 06
Reference Field Code: 03
Reference Field: IGRF-1965
Method of Applying Residual Field: LINEAR INTERPOLATION BETWEEN NAVIGATION POINTS
General Digitizing Rate of Gravity: 100
General Sampling Rate of Gravity: 00
Theoretical Gravity Formula Code: 2
Theoretical Gravity Formula: INTERNATIONAL1930
Reference System Code: 2
Reference System: POTSDAM SYSTEM
Departure Base Station Gravity: 9797187
Departure Base Station Description: MELBOURNE, AUSTRALIA
Arrival Base Station Gravity: 9799488
Arrival Base Station Description: AUCKLAND, NEW ZEALAND
Number of Data Records: 10394
Min/Max Data Record:
Date: 1969 06 08
Latitude: -57.80520
Longitude: +125.87170
Bathymetry, 2- Way Traveltime: 001400
Bathymetry, Corrected Depth: 105.0
Magnetics Total Field, 1st Sensor: 535830
Magnetics Residual Field: -08540
Free-Air Anomaly: -0998
Min/Max Data Record:
Date: 1969 08 04
Latitude: -32.05320
Longitude: +175.12850
Bathymetry, 2- Way Traveltime: 077450
Bathymetry, Corrected Depth: 5849.0
Magnetics Total Field, 1st Sensor: 680960
Magnetics Residual Field: +16860
Free-Air Anomaly: +1288