Survey Identifier: ELT43
Format Acronym: MGD77
Data Center File Number: 01020045
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): DENNIS HAYES
Project: CRUISE 043
Funding: NSF
Survey Departure Date (yyyymmdd): 19700421
Port of Departure: PUNTA ARENAS, CHILE
Survey Arrival Date (yyyymmdd): 19700603
Port of Arrival: WELLINGTON, NEW ZEALAND
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: -41
Bottommost Latitude: -67
Leftmost Longitude: +172
Rightmost Longitude: -067
General Digitizing Rate of Bathymetry: 32
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: 9813151
Departure Base Station Description: PUNTA ARENAS, CHILE
Arrival Base Station Gravity: 980266
Arrival Base Station Description: WELLINGTON, NEW ZEALAND
Number of Data Records: 19264
Min/Max Data Record:
Date: 1970 04 21
Latitude: -66.13820
Longitude: -179.99900
Bathymetry, 2- Way Traveltime: 000725
Bathymetry, Corrected Depth: 54.0
Magnetics Total Field, 1st Sensor: 361090
Magnetics Residual Field: -07320
Free-Air Anomaly: -1115
Min/Max Data Record:
Date: 1970 06 03
Latitude: -41.50000
Longitude: +179.98970
Bathymetry, 2- Way Traveltime: 074625
Bathymetry, Corrected Depth: 5609.0
Magnetics Total Field, 1st Sensor: 625400
Magnetics Residual Field: +10990
Free-Air Anomaly: +0821