Survey Identifier: ELT21
Format Acronym: MGD77
Data Center File Number: 01020021
Parameters Surveyed Code: 55113
File Creation Date (yyyymmdd): 19890705
Source Institution: LAMONT-DOHERTY GEOLOGICAL OBSERVATORY
Country: USA
Platform Name: ELTANIN
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): LAWERENCE OBLINGER
Project: CRUISE 021
Funding: NSF
Survey Departure Date (yyyymmdd): 19651123
Port of Departure: VALPARISO, CHILE
Survey Arrival Date (yyyymmdd): 19660107
Port of Arrival: PUNTA ARENAS, CHILE
Navigation Instrumentation: SATELLITE AND SEXTANT
Geodetic Datum/Position: SATELLITE AND DEADRECKONING
Bathymetry Instrumentation: PDR 12KHZ WIDEBEAM 60DEGREE ONCE PER SEC
Additional Forms of Bathymetric Data: ANALOG DATA
Gravity Instrumentation: VARIAN MFG. PROTON PRECESSION
Additional Forms of Gravity Data: ANALOG DATA
Seismic Instrumentation: RAYFLEX SEISMIC SYSTEM, STRIP RECORDER
Formats of Seismic Data: 10 KILOJOULES, SPARKER, STREAMER
Topmost Latitude of Survey: -32
Bottommost Latitude: -63
Leftmost Longitude: -121
Rightmost Longitude: -070
General Digitizing Rate of Bathymetry: 38
General Sampling Rate of Bathymetry: 1/SECOND
Assumed Sound Velocity: 14630
Bathymetric Datum Code: 00
General Digitizing Rate of Magnetics: 040
General Sampling Rate of Magnetics: 06
Reference Field Code: 03
Reference Field: IGRF 1965
Method of Applying Residual Field: LINEAR INERPOLATION BETWEEN NAVIGATION POINTS
Number of Data Records: 16996
Min/Max Data Record:
Date: 1965 11 23
Latitude: -62.51670
Longitude: -120.43330
Bathymetry, 2- Way Traveltime: 000525
Bathymetry, Corrected Depth: 39.0
Magnetics Total Field, 1st Sensor: 282120
Magnetics Residual Field: -06880
Min/Max Data Record:
Date: 1966 01 07
Latitude: -32.95000
Longitude: -70.76670
Bathymetry, 2- Way Traveltime: 079450
Bathymetry, Corrected Depth: 5983.0
Magnetics Total Field, 1st Sensor: 551890
Magnetics Residual Field: +07010