Survey Identifier: ELT28
Format Acronym: MGD77
Data Center File Number: 01020028
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): MANI K TALWANI, LARRY NEUMAN
Project: CRUISE 28 LEG32
Funding: NSF
Survey Departure Date (yyyymmdd): 19670310
Port of Departure: MELBOURNE, AUSTRALIA
Survey Arrival Date (yyyymmdd): 19670518
Port of Arrival: VALPARAISO, CHILE
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: -44
Leftmost Longitude: +144
Rightmost Longitude: -071
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: 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: INTERNATIONAL
Reference System Code: 2
Reference System: POTSDAM SYSTEM
Departure Base Station Gravity: 9799790
Departure Base Station Description: MELBOURNE, AUSTRALIA
Arrival Base Station Gravity: 9794308
Arrival Base Station Description: VALPARISO, CHILE
Number of Data Records: 16580
Min/Max Data Record:
Date: 1967 03 10
Latitude: -43.58940
Longitude: -179.97790
Bathymetry, 2- Way Traveltime: 000325
Bathymetry, Corrected Depth: 24.0
Magnetics Total Field, 1st Sensor: 301090
Magnetics Residual Field: -04820
Free-Air Anomaly: -1918
Min/Max Data Record:
Date: 1967 05 18
Latitude: -32.97500
Longitude: +179.99840
Bathymetry, 2- Way Traveltime: 081275
Bathymetry, Corrected Depth: 6143.0
Magnetics Total Field, 1st Sensor: 542750
Magnetics Residual Field: +08740
Free-Air Anomaly: +1230