Survey Identifier: C0907
Format Acronym: MGD77
Data Center File Number: 01010025
Parameters Surveyed Code: 55533
File Creation Date (yyyymmdd): 19890626
Source Institution: LAMONT-DOHERTY GEOLOGICAL OBSERVATORY
Country: USA
Platform Name: ROBERT D. CONRAD
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): M. LANGBETH
Project: CRUISE 09, LEG 7
Survey Departure Date (yyyymmdd): 19650423
Port of Departure: HOBART, TASMANIA
Survey Arrival Date (yyyymmdd): 19650511
Port of Arrival: FREEMANTLE, AUSTRALIA
Bathymetry Instrumentation: (SEE ADD DOC / 18)
Additional Forms of Bathymetric Data: ANALOG RECORDS
Magnetics Instrumentation: L-DGO MFG PROTON-PRECESSION
Additional Forms of Magnetics Data: ANALOG RECORDS
Gravity Instrumentation: ANSCHUTZ ELECTRICTABLE, ASKANIA GSS2-6
Additional Forms of Gravity Data: ANALOG RECORDS
Seismic Instrumentation: L-DGO 25CU-IN-AIRGUN,EEL,DRUM RECORDER
Formats of Seismic Data: TWO, 2-CHANNEL SHEET RECORDS
Topmost Latitude of Survey: -31
Bottommost Latitude: -53
Leftmost Longitude: +111
Rightmost Longitude: +149
General Digitizing Rate of Bathymetry: 060
General Sampling Rate of Bathymetry: ONE SECOND
Assumed Sound Velocity: 14630
Bathymetric Datum Code: 00
Interpolation Scheme: NONE
General Digitizing Rate of Magnetics: 67
Reference Field Code: 03
Reference Field: IGRF-65
Method of Applying Residual Field: LINEAR INTERPOLATION BETWEEN NAV PTS
General Digitizing Rate of Gravity: 68
Theoretical Gravity Formula Code: 2
Theoretical Gravity Formula: INTERNAT'L 1930
Reference System Code: 2
Reference System: POTSDAM
Additional Documentation: 06- 3.5 AND 12 KHZ, WIDE BEAM (60 DEG), 1 SECOND SWEEP
Number of Data Records: 3824
Min/Max Data Record:
Date: 1965 04 23
Latitude: -52.28380
Longitude: +111.34750
Bathymetry, 2- Way Traveltime: 000950
Bathymetry, Corrected Depth: 71.0
Magnetics Total Field, 1st Sensor: 585430
Magnetics Residual Field: -08120
Free-Air Anomaly: -1373
Min/Max Data Record:
Date: 1965 05 11
Latitude: -31.84590
Longitude: +148.40800
Bathymetry, 2- Way Traveltime: 078500
Bathymetry, Corrected Depth: 5930.0
Magnetics Total Field, 1st Sensor: 677550
Magnetics Residual Field: +08490
Free-Air Anomaly: +0259