Survey Identifier: ELT33
Format Acronym: MGD77
Data Center File Number: 01020033
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): ROBERT SHERIDAN
Project: CRUISE 033
Funding: NSF
Survey Departure Date (yyyymmdd): 19680311
Port of Departure: WELLINGTON, NEW ZEALAND
Survey Arrival Date (yyyymmdd): 19680517
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: -36
Bottommost Latitude: -71
Leftmost Longitude: +169
Rightmost Longitude: -119
General Digitizing Rate of Bathymetry: 060
General Sampling Rate of Bathymetry: 1/SECOND
Assumed Sound Velocity: 14630
Bathymetric Datum Code: 00
General Digitizing Rate of Magnetics: 040
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: INTERNATIONAL
Reference System Code: 2
Reference System: POTSDAM SYSTEM
Departure Base Station Gravity: 9802660
Departure Base Station Description: WELLINGTON, NEW ZEALAND
Arrival Base Station Description: AUCKLAND, NEW ZEALAND
Number of Data Records: 24363
Min/Max Data Record:
Date: 1968 03 11
Latitude: -70.14180
Longitude: -179.99600
Bathymetry, 2- Way Traveltime: 000125
Bathymetry, Corrected Depth: 9.0
Magnetics Total Field, 1st Sensor: 513630
Magnetics Residual Field: -08620
Free-Air Anomaly: -1198
Min/Max Data Record:
Date: 1968 05 17
Latitude: -36.48460
Longitude: +179.99300
Bathymetry, 2- Way Traveltime: 077700
Bathymetry, Corrected Depth: 5847.0
Magnetics Total Field, 1st Sensor: 649420
Magnetics Residual Field: +09110
Free-Air Anomaly: +1119