Survey Identifier: ELT41


Format Acronym: MGD77
Data Center File Number: 01020042
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): JOHN LA BRECQUE
Project: CRUISE 041
Funding: NSF
Survey Departure Date (yyyymmdd): 19691220
Port of Departure: ADELAIDE, AUSTRALIA
Survey Arrival Date (yyyymmdd): 19700126
Port of Arrival: ADELAIDE, AUSTRALIA
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: -65
Leftmost Longitude: +129
Rightmost Longitude: +138
General Digitizing Rate of Bathymetry: 050
General Sampling Rate of Bathymetry: 1/SECOND
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: INTERNATIONAL1930
Reference System Code: 2
Reference System: POTSDAM SYSTEM
Departure Base Station Gravity: 9797140
Departure Base Station Description: ADELAIDE, AUSTRALIA
Arrival Base Station Gravity: 9797140
Arrival Base Station Description: ADELAIDE, AUSTRALIA
Number of Data Records: 10836

Min/Max Data Record:
Date: 1969 12 20
Latitude: -64.46070
Longitude: +129.76540
Bathymetry, 2- Way Traveltime: 000350
Bathymetry, Corrected Depth: 26.0
Magnetics Total Field, 1st Sensor: 588990
Magnetics Residual Field: -09920
Free-Air Anomaly: -0881

Min/Max Data Record:
Date: 1970 01 26
Latitude: -32.46020
Longitude: +137.54670
Bathymetry, 2- Way Traveltime: 075200
Bathymetry, Corrected Depth: 5673.0
Magnetics Total Field, 1st Sensor: 681980
Magnetics Residual Field: +12410
Free-Air Anomaly: +0310