Survey Identifier: C1104
Format Acronym: MGD77
Data Center File Number: 01010047
Parameters Surveyed Code: 55533
File Creation Date (yyyymmdd): 19890706
Source Institution: LAMONT-DOHERTY GEOLOGICAL OBSERVATORY
Country: USA
Platform Name: ROBERT D. CONRAD
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): G. DICKSON
Project: CRUISE 11, LEG 4
Survey Departure Date (yyyymmdd): 19670302
Port of Departure: CAPETOWN, SOUTH AFRICA
Survey Arrival Date (yyyymmdd): 19670403
Port of Arrival: PORT LOUIS, MAURITUS
Navigation Instrumentation: SATELLITE
Geodetic Datum/Position: SATELLITE /DEAD RECKONING
Bathymetry Instrumentation: 06-3.5 AND 12 KHZ, WIDE BEAM (60 DEG)
Additional Forms of Bathymetric Data: ANALOG RECORDS
Magnetics Instrumentation: L-DGO MFG PRORN 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: -19
Bottommost Latitude: -57
Leftmost Longitude: +018
Rightmost Longitude: +064
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: 54
Reference Field Code: 03
Reference Field: IGRF-65
Method of Applying Residual Field: LINEAR INTERPOLATION BETWEEN NAV PTS
General Digitizing Rate of Gravity: 52
Theoretical Gravity Formula Code: 2
Theoretical Gravity Formula: INTERNAT'L 1930
Reference System Code: 2
Reference System: POTSDAM SYSTEM
Additional Documentation: ---
Number of Data Records: 8303
Min/Max Data Record:
Date: 1967 03 02
Latitude: -56.83640
Longitude: +18.30920
Bathymetry, 2- Way Traveltime: 002875
Bathymetry, Corrected Depth: 217.0
Magnetics Total Field, 1st Sensor: 287380
Magnetics Residual Field: -09120
Free-Air Anomaly: -0950
Min/Max Data Record:
Date: 1967 04 03
Latitude: -19.68190
Longitude: +63.97920
Bathymetry, 2- Way Traveltime: 077150
Bathymetry, Corrected Depth: 5783.0
Magnetics Total Field, 1st Sensor: 460270
Magnetics Residual Field: +06620
Free-Air Anomaly: +1036