Survey Identifier: V1817
Format Acronym: MGD77
Data Center File Number: 01030034
Parameters Surveyed Code: 55533
File Creation Date (yyyymmdd): 19890630
Source Institution: LAMONT-DOHERTY GEOLOGICAL OBSERVATORY
Country: U.S.A.
Platform Name: VEMA
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): C. DRAKE
Project: CRUISE 18, LEG 17
Survey Departure Date (yyyymmdd): 19621028
Port of Departure: BALBOA, PANAMA
Survey Arrival Date (yyyymmdd): 19621111
Port of Arrival: NASSAU, BAHAMAS
Navigation Instrumentation: SATELLITE/SEXTANT
Geodetic Datum/Position: SATELITE / 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: ?-DGO 2CU.IN.AIRGUN, EEL,DRUM RECORDER
Formats of Seismic Data: TWO, 2-CHANNEL SHEET RECORDS
Topmost Latitude of Survey: +29
Bottommost Latitude: +09
Leftmost Longitude: -090
Rightmost Longitude: -075
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 WAV. 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: 2196
Min/Max Data Record:
Date: 1962 10 28
Latitude: +9.40000
Longitude: -89.35000
Bathymetry, 2- Way Traveltime: 000275
Bathymetry, Corrected Depth: 21.0
Magnetics Total Field, 1st Sensor: 385420
Magnetics Residual Field: -03080
Free-Air Anomaly: -1462
Min/Max Data Record:
Date: 1962 11 11
Latitude: +28.13830
Longitude: -75.64670
Bathymetry, 2- Way Traveltime: 076250
Bathymetry, Corrected Depth: 5796.0
Magnetics Total Field, 1st Sensor: 512360
Magnetics Residual Field: +10860
Free-Air Anomaly: +0990