Survey Identifier: ELT30
Format Acronym: MGD77
Data Center File Number: 01020030
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): LARRY NEUMAN
Project: CRUISE 030
Funding: NSF
Survey Departure Date (yyyymmdd): 19670812
Port of Departure: BRISBANE,AUSTRALIA
Survey Arrival Date (yyyymmdd): 19670921
Port of Arrival: SAN FRANCISCO, USA
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: +38
Bottommost Latitude: -27
Leftmost Longitude: +153
Rightmost Longitude: -122
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: 9791690
Departure Base Station Description: BRISBANE, AUSTRALIA
Arrival Base Station Gravity: 9799745
Arrival Base Station Description: SAN FRANCISCO, USA
Number of Data Records: 11595
Min/Max Data Record:
Date: 1967 08 12
Latitude: -26.80830
Longitude: -179.99620
Bathymetry, 2- Way Traveltime: 000400
Bathymetry, Corrected Depth: 30.0
Magnetics Total Field, 1st Sensor: 331000
Magnetics Residual Field: -05470
Free-Air Anomaly: -1589
Min/Max Data Record:
Date: 1967 09 21
Latitude: +37.73000
Longitude: +179.99750
Bathymetry, 2- Way Traveltime: 094150
Bathymetry, Corrected Depth: 7174.0
Magnetics Total Field, 1st Sensor: 511400
Magnetics Residual Field: +05280
Free-Air Anomaly: +1574