Survey Identifier: ELT12


Format Acronym: MGD77
Data Center File Number: 01020012
Parameters Surveyed Code: 50111
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): KENDALL N. MOULTON
Project: CRUISE12
Funding: NSF
Survey Departure Date (yyyymmdd): 19640303
Port of Departure: VALPARAISO CHILE
Survey Arrival Date (yyyymmdd): 19640430
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
Topmost Latitude of Survey: -33
Bottommost Latitude: -67
Leftmost Longitude: -081
Rightmost Longitude: -028
General Digitizing Rate of Bathymetry: 49
General Sampling Rate of Bathymetry: ONE SECOND
Assumed Sound Velocity: 14630
Bathymetric Datum Code: 00
Number of Data Records: 16531

Min/Max Data Record:
Date: 1964 03 03
Latitude: -66.05670
Longitude: -80.25000
Bathymetry, 2- Way Traveltime: 001925
Bathymetry, Corrected Depth: 144.0

Min/Max Data Record:
Date: 1964 04 30
Latitude: -33.10000
Longitude: -28.18330
Bathymetry, 2- Way Traveltime: 073325
Bathymetry, Corrected Depth: 5475.0