Survey Identifier: EL41A
Format Acronym: MGD77
Data Center File Number: 01020043
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 LABRECQUE
Project: CRUISE 041A
Funding: NSF
Survey Departure Date (yyyymmdd): 19700129
Port of Departure: ADELAIDE, AUSTRALIA
Survey Arrival Date (yyyymmdd): 19700215
Port of Arrival: ADELIADE, AUSTRALIA
Navigation Instrumentation: SATELLITE AND SEXTANT
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: -34
Bottommost Latitude: -61
Leftmost Longitude: +130
Rightmost Longitude: +139
General Digitizing Rate of Bathymetry: 050
General Sampling Rate of Bathymetry: 1/SECOND
Assumed Sound Velocity: 14630
Bathymetric Datum Code: 00
General Digitizing Rate of Magnetics: 21
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: 9797235
Arrival Base Station Description: ADELAIDE, AUSTRALIA
Number of Data Records: 10793
Min/Max Data Record:
Date: 1970 01 29
Latitude: -60.00900
Longitude: +130.47400
Bathymetry, 2- Way Traveltime: 001825
Bathymetry, Corrected Depth: 137.0
Magnetics Total Field, 1st Sensor: 601710
Magnetics Residual Field: -08980
Free-Air Anomaly: -1012
Min/Max Data Record:
Date: 1970 02 15
Latitude: -34.95000
Longitude: +138.21660
Bathymetry, 2- Way Traveltime: 078700
Bathymetry, Corrected Depth: 5944.0
Magnetics Total Field, 1st Sensor: 682160
Magnetics Residual Field: +09950
Free-Air Anomaly: +0400