Survey Identifier: ELT44
Format Acronym: MGD77
Data Center File Number: 01020046
Parameters Surveyed Code: 55513
File Creation Date (yyyymmdd): 19890706
Source Institution: LAMONT-DOHERTY GEOLOGICAL OBSERVATORY
Country: USA
Platform Name: ELTANIN
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): DAVID CHRISTOFFE
Project: CRUISE 044
Funding: NSF
Survey Departure Date (yyyymmdd): 19700624
Port of Departure: WELLINGTON, NEW ZEALAND
Survey Arrival Date (yyyymmdd): 19700818
Port of Arrival: FREMANTLE, AUSTRALIA
Navigation Instrumentation: SATELLITE AND SEXTANT
Geodetic Datum/Position: SATELLITE AND DEADRECKONING
Bathymetry Instrumentation: PDR 12KHZ 60DEG WIDEBEAM 1/SEC
Additional Forms of Bathymetric Data: ANALOG DATA
Magnetics Instrumentation: VARIAN MFG. 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-2 CHANNEL SHEET RECORDS
Topmost Latitude of Survey: -31
Bottommost Latitude: -62
Leftmost Longitude: +114
Rightmost Longitude: +175
General Digitizing Rate of Bathymetry: 33
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 INTERPOLOATION 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: 9802661
Departure Base Station Description: WELLINGTON, NEW ZEALAND
Arrival Base Station Gravity: 9794130
Arrival Base Station Description: FREMANTLE, AUSTRALIA
Number of Data Records: 21599
Min/Max Data Record:
Date: 1970 06 24
Latitude: -61.61530
Longitude: +114.75680
Bathymetry, 2- Way Traveltime: 000500
Bathymetry, Corrected Depth: 38.0
Magnetics Total Field, 1st Sensor: 572820
Magnetics Residual Field: -07050
Free-Air Anomaly: -2049
Min/Max Data Record:
Date: 1970 08 18
Latitude: -31.92650
Longitude: +174.52200
Bathymetry, 2- Way Traveltime: 085075
Bathymetry, Corrected Depth: 6413.0
Magnetics Total Field, 1st Sensor: 680440
Magnetics Residual Field: +08590
Free-Air Anomaly: +2653