Survey Identifier: ELT53
Format Acronym: MGD77
Data Center File Number: 01020056
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 053
Funding: NSF
Survey Departure Date (yyyymmdd): 19720410
Port of Departure: LYTTELTON, NEW ZEALAND
Survey Arrival Date (yyyymmdd): 19720609
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: -64
Leftmost Longitude: +114
Rightmost Longitude: +174
General Digitizing Rate of Bathymetry: 25
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: 9804954
Departure Base Station Description: LYTTELTON, NEW ZEALAND
Arrival Base Station Gravity: 9793938
Arrival Base Station Description: FREMANTLE, AUSTRALIA
Additional Documentation: PDR3.5KHZ 38 DEGREE 1/SEC SWEEP ALSO USED ON BATHYMETRY
Number of Data Records: 33925
Min/Max Data Record:
Date: 1972 04 10
Latitude: -63.04890
Longitude: +114.39600
Bathymetry, 2- Way Traveltime: 000150
Bathymetry, Corrected Depth: 11.0
Magnetics Total Field, 1st Sensor: 585200
Magnetics Residual Field: -12580
Free-Air Anomaly: -0981
Min/Max Data Record:
Date: 1972 06 09
Latitude: -31.92440
Longitude: +173.24480
Bathymetry, 2- Way Traveltime: 076500
Bathymetry, Corrected Depth: 5780.0
Magnetics Total Field, 1st Sensor: 683610
Magnetics Residual Field: +09600
Free-Air Anomaly: +1777