Survey Identifier: C0905
Format Acronym: MGD77
Data Center File Number: 01010023
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): A. LONARDI
Project: CRUISE 09, LEG 5
Survey Departure Date (yyyymmdd): 19650212
Port of Departure: ANTOFAGASTA, CHILE
Survey Arrival Date (yyyymmdd): 19650318
Port of Arrival: WELLINGTON, NEW ZEALAND
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: -20
Bottommost Latitude: -44
Leftmost Longitude: +174
Rightmost Longitude: -070
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: 32
Reference Field Code: 03
Reference Field: IGRF-65
Method of Applying Residual Field: LINEAR INTERPOLATION BETWEEN NAV PTS
General Digitizing Rate of Gravity: 32
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: 14775
Min/Max Data Record:
Date: 1965 02 12
Latitude: -43.56240
Longitude: -179.99680
Bathymetry, 2- Way Traveltime: 000675
Bathymetry, Corrected Depth: 51.0
Magnetics Total Field, 1st Sensor: 262810
Magnetics Residual Field: -05170
Free-Air Anomaly: -2504
Min/Max Data Record:
Date: 1965 03 18
Latitude: -20.00230
Longitude: +179.98090
Bathymetry, 2- Way Traveltime: 104275
Bathymetry, Corrected Depth: 7960.0
Magnetics Total Field, 1st Sensor: 578930
Magnetics Residual Field: +09220
Free-Air Anomaly: +1011