Survey Identifier: ELT45


Format Acronym: MGD77
Data Center File Number: 01020047
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): THOMAS AITKEN
Project: CRUISE 045
Funding: NSF
Survey Departure Date (yyyymmdd): 19700909
Port of Departure: FREMANTLE, AUSTRALIA
Survey Arrival Date (yyyymmdd): 19701028
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: -29
Bottommost Latitude: -62
Leftmost Longitude: +099
Rightmost Longitude: +116
General Digitizing Rate of Bathymetry: 90
General Sampling Rate of Bathymetry: 1/SECOND
Assumed Sound Velocity: 14630
Bathymetric Datum Code: 00
General Digitizing Rate of Magnetics: 73
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: 9793938
Departure Base Station Description: FREMANTLE, AUSTRALIA
Arrival Base Station Gravity: 9794630
Arrival Base Station Description: FREMANTLE, AUSTRALIA
Number of Data Records: 16304

Min/Max Data Record:
Date: 1970 09 09
Latitude: -61.36200
Longitude: +99.94750
Bathymetry, 2- Way Traveltime: 000550
Bathymetry, Corrected Depth: 41.0
Magnetics Total Field, 1st Sensor: 555840
Magnetics Residual Field: -06880
Free-Air Anomaly: -1599

Min/Max Data Record:
Date: 1970 10 28
Latitude: -29.10230
Longitude: +115.24170
Bathymetry, 2- Way Traveltime: 091625
Bathymetry, Corrected Depth: 6963.0
Magnetics Total Field, 1st Sensor: 665270
Magnetics Residual Field: +06600
Free-Air Anomaly: +0756