Survey Identifier: TD277
Format Acronym: MGD77
Data Center File Number: 71020002
Parameters Surveyed Code: 55113
File Creation Date (yyyymmdd): 19800605
Source Institution: UNIVERSITY CAPETOWN GEOLOGY
Country: SOUTH AFRICA
Platform Name: THOMAS B DAVIE
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): E S W SIMPSON
Project: CRUISE 267
Funding: SANCOR
Survey Departure Date (yyyymmdd): 19721016
Port of Departure: DURBAN SOUTH AFRICA
Survey Arrival Date (yyyymmdd): 19721110
Port of Arrival: DURBAN SOUTH AFRICA
Navigation Instrumentation: OMEGA AND SEXTANT
Geodetic Datum/Position: OMEGA AND DEAD RECKONING
Bathymetry Instrumentation: ELAC PDR 12KH2
Additional Forms of Bathymetric Data: ANALOG RECORDS
Magnetics Instrumentation: PROTON PRECESSION MAG-VARIAN
Additional Forms of Magnetics Data: ANALOG RECORDS
Seismic Instrumentation: 26CUINAIRGUNSPARKERSTREAMER EPCRECORDER
Formats of Seismic Data: SINGLE-CHANNEL ANALOG RECORD NEGATIVES
Topmost Latitude of Survey: -14
Bottommost Latitude: -30
Leftmost Longitude: +031
Rightmost Longitude: +045
General Digitizing Rate of Bathymetry: 050
General Sampling Rate of Bathymetry: VARIABLE
Assumed Sound Velocity: 1500
Bathymetric Datum Code: 00
Interpolation Scheme: 5-MIN INTERVALS AND PEAKS AND TROUGHS
General Digitizing Rate of Magnetics: 050
General Sampling Rate of Magnetics: 06
Magnetic Sensor Tow Distance: 0070
Reference Field Code: 03
Reference Field: IGRF-65
Method of Applying Residual Field: LINEAR INTERPOLATION BETWEEN NAVIGATION POINTS
Number of Data Records: 6374
Min/Max Data Record:
Date: 1972 10 16
Latitude: -29.83000
Longitude: +31.19670
Bathymetry, 2- Way Traveltime: 000275
Bathymetry, Corrected Depth: 21.0
Magnetics Total Field, 1st Sensor: 299560
Magnetics Residual Field: -10040
Min/Max Data Record:
Date: 1972 11 10
Latitude: -14.00170
Longitude: +44.63330
Bathymetry, 2- Way Traveltime: 064400
Bathymetry, Corrected Depth: 4857.0
Magnetics Total Field, 1st Sensor: 341170
Magnetics Residual Field: +02690