Survey Identifier: ELT09
Format Acronym: MGD77
Data Center File Number: 01020009
Parameters Surveyed Code: 55111
File Creation Date (yyyymmdd): 19890705
Source Institution: LAMONT-DOHERTY GEOLOGICAL OBSERVATORY
Country: UNITED STATES
Platform Name: ELTANIN
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): JOHN G. COLSON JR.
Project: CRUISE09
Funding: NSF
Survey Departure Date (yyyymmdd): 19630802
Port of Departure: TALCAHUANO CHILE
Survey Arrival Date (yyyymmdd): 19630927
Port of Arrival: VALPARAISO CHILE
Navigation Instrumentation: SEXTANT
Geodetic Datum/Position: DEAD RECKONING
Bathymetry Instrumentation: PDR12KHZ WIDEBEAM ONCE PER SEC.SWEEP
Additional Forms of Bathymetric Data: ANALOG RECORDS
Magnetics Instrumentation: L-DGO PROTON PRECESSION
Topmost Latitude of Survey: -32
Bottommost Latitude: -60
Leftmost Longitude: -083
Rightmost Longitude: -032
General Digitizing Rate of Bathymetry: 52
General Sampling Rate of Bathymetry: ONE SECOND
Assumed Sound Velocity: 14630
Bathymetric Datum Code: 00
General Digitizing Rate of Magnetics: 150
General Sampling Rate of Magnetics: 06
Reference Field Code: 03
Reference Field: NIGRF
Method of Applying Residual Field: LINEAR INTERPOLATION BETWEEN NAV. POINTS
Number of Data Records: 15451
Min/Max Data Record:
Date: 1963 08 02
Latitude: -59.21670
Longitude: -82.20000
Bathymetry, 2- Way Traveltime: 000150
Bathymetry, Corrected Depth: 11.0
Magnetics Total Field, 1st Sensor: 271110
Magnetics Residual Field: -07270
Min/Max Data Record:
Date: 1963 09 27
Latitude: -32.96670
Longitude: -32.95000
Bathymetry, 2- Way Traveltime: 079300
Bathymetry, Corrected Depth: 5963.0
Magnetics Total Field, 1st Sensor: 391450
Magnetics Residual Field: +08200