Survey Identifier: EL54B
Format Acronym: MGD77
Data Center File Number: 01020059
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): RUDI MARKL
Project: CRUISE 054B
Funding: NSF
Survey Departure Date (yyyymmdd): 19720901
Port of Departure: MELBOURNE, AUSTRALIA
Survey Arrival Date (yyyymmdd): 19720907
Port of Arrival: NEWCASTLE, 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: -32
Bottommost Latitude: -41
Leftmost Longitude: +144
Rightmost Longitude: +157
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: 9799789
Departure Base Station Description: MELBOURNE, AUSTRALIA
Arrival Base Station Description: NEWCASTLE, AUSTRALIA (NO TIE)
Additional Documentation: PDR3.5KHZ 38 DEGREE 1/SEC SWEEP ALSO USED ON BATHYMETRY
Number of Data Records: 2985
Min/Max Data Record:
Date: 1972 09 01
Latitude: -40.76860
Longitude: +144.60670
Bathymetry, 2- Way Traveltime: 000100
Bathymetry, Corrected Depth: 7.0
Magnetics Total Field, 1st Sensor: 574240
Magnetics Residual Field: -03840
Free-Air Anomaly: -0734
Min/Max Data Record:
Date: 1972 09 07
Latitude: -32.87460
Longitude: +156.47520
Bathymetry, 2- Way Traveltime: 070425
Bathymetry, Corrected Depth: 5306.0
Magnetics Total Field, 1st Sensor: 617740
Magnetics Residual Field: +02030
Free-Air Anomaly: +0711