Survey Identifier: V2411
Format Acronym: MGD77
Data Center File Number: 01030206
Parameters Surveyed Code: 55533
File Creation Date (yyyymmdd): 19890703
Source Institution: LAMONT-DOHERTY GEOLOGICAL OBSERVATORY
Country: U.S.A.
Platform Name: VEMA
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): THOMAS AITKEN
Project: CRUISE 24, LEG 11
Survey Departure Date (yyyymmdd): 19670921
Port of Departure: PORT LOUIS, MAURITIUS
Survey Arrival Date (yyyymmdd): 19671011
Port of Arrival: CAPETOWN, SOUTH AFRICA
Navigation Instrumentation: SATELLITE/SEXTANT
Geodetic Datum/Position: SATELLITE / DEAD RECKONING
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: GRAF-ASKANIA GSS2-12
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: -38
Leftmost Longitude: +018
Rightmost Longitude: +061
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: 060
General Sampling Rate of Magnetics: 06
Reference Field Code: 03
Reference Field: IGRF-65
Method of Applying Residual Field: LINEAR INTERPOLATION BETWEEN NAV. PTS.
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
Additional Documentation: 06 - 3.5 AND 12 KHZ, WIDE BEAM (60 DEG), 1 SECOND SWEEP
Number of Data Records: 4607
Min/Max Data Record:
Date: 1967 09 21
Latitude: -37.71700
Longitude: +18.24460
Bathymetry, 2- Way Traveltime: 000725
Bathymetry, Corrected Depth: 54.0
Magnetics Total Field, 1st Sensor: 292060
Magnetics Residual Field: -09000
Free-Air Anomaly: -1739
Min/Max Data Record:
Date: 1967 10 11
Latitude: -20.20520
Longitude: +60.06190
Bathymetry, 2- Way Traveltime: 082925
Bathymetry, Corrected Depth: 6288.0
Magnetics Total Field, 1st Sensor: 398290
Magnetics Residual Field: +09760
Free-Air Anomaly: +2201