Survey Identifier: WELOC772
Format Acronym: MGD77
Data Center File Number: 07080005
Parameters Surveyed Code: 55000
File Creation Date (yyyymmdd): 1982 924
Source Institution: OREGON STATE UNIVERSITY
Country: USA
Platform Name: WECOMA
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): JOHNSON R
Project: P( )C(WELOC-77)L(2)
Funding: NSF
Survey Departure Date (yyyymmdd): 19770207
Port of Departure: PANAMA, PANAMA
Survey Arrival Date (yyyymmdd): 19770306
Port of Arrival: LIMA, PERU
Navigation Instrumentation: SATELLITE NAVIGATION
Geodetic Datum/Position: SATELLITE DEAD RECKONING
Bathymetry Instrumentation: 12KHZ WIDE ANGLE
Additional Forms of Bathymetric Data: DIGITIZED
Magnetics Instrumentation: GEOMETRICS GBO1/3 PROTON PRECESSION
Additional Forms of Magnetics Data: DIGITIZED
Gravity Instrumentation: LACOSTE + ROMBURG GRAVIMETER
Additional Forms of Gravity Data: DIGITIZED
Seismic Instrumentation: AIRGUN SONABOUV OBS SEISMIC REFRACTION
Formats of Seismic Data: ANALOG MAG TAPES
Topmost Latitude of Survey: +07
Bottommost Latitude: -13
Leftmost Longitude: -111
Rightmost Longitude: -077
General Digitizing Rate of Bathymetry: 53
General Digitizing Rate of Magnetics: 050
General Sampling Rate of Magnetics: 03
Magnetic Sensor Tow Distance: 0215
Sensor Depth: 00030
Reference Field Code: 04
Reference Field: IGRF 75
Method of Applying Residual Field: LINEAR INTERP BETWEEN NAV POINTS
General Digitizing Rate of Gravity: 050
Theoretical Gravity Formula Code: 3
Theoretical Gravity Formula: IAG SYSTEM 1967
Reference System Code: 3
Reference System: IGSN 71
Corrections Applied: NOT AVAILABLE
Number of Data Records: 7972
Min/Max Data Record:
Date: 1977 02 07
Latitude: -12.08110
Longitude: -110.78160
Bathymetry, 2- Way Traveltime: 000950
Bathymetry, Corrected Depth: 71.0
Magnetics Total Field, 1st Sensor: 276010
Magnetics Residual Field: -07360
Min/Max Data Record:
Date: 1977 03 06
Latitude: +6.79530
Longitude: -77.19130
Bathymetry, 2- Way Traveltime: 082750
Bathymetry, Corrected Depth: 6268.0
Magnetics Total Field, 1st Sensor: 357480
Magnetics Residual Field: +07930