Survey Identifier: V1707
Format Acronym: MGD77
Data Center File Number: 01030007
Parameters Surveyed Code: 55133
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): W. PITMAN
Project: CRUISE 17, LEG 7
Survey Departure Date (yyyymmdd): 19610320
Port of Departure: TALCAHUANO, CHILE
Survey Arrival Date (yyyymmdd): 19610330
Port of Arrival: PUNTA ARENAS, CHILE
Navigation Instrumentation: SEXTANT
Geodetic Datum/Position: 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
Seismic Instrumentation: L-DGO 25CU.IN.AIRGUN,EEL, DRUM RECORDER
Formats of Seismic Data: TWO,2-CHANNEL SHEET RECORDS
Topmost Latitude of Survey: -36
Bottommost Latitude: -54
Leftmost Longitude: -079
Rightmost Longitude: -069
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.
Additional Documentation: 06 - 12 KHZ, WIDE BEAM (60 DEG), 1 SECOND SWEEP
Number of Data Records: 2551
Min/Max Data Record:
Date: 1961 03 20
Latitude: -53.80830
Longitude: -78.83330
Bathymetry, 2- Way Traveltime: 000200
Bathymetry, Corrected Depth: 15.0
Magnetics Total Field, 1st Sensor: 286820
Magnetics Residual Field: -05530
Min/Max Data Record:
Date: 1961 03 30
Latitude: -36.61830
Longitude: -69.54830
Bathymetry, 2- Way Traveltime: 063700
Bathymetry, Corrected Depth: 4783.0
Magnetics Total Field, 1st Sensor: 376130
Magnetics Residual Field: +05670