Survey Identifier: C2305
Format Acronym: MGD77
Data Center File Number: 01010218
Parameters Surveyed Code: 55533
File Creation Date (yyyymmdd): 19880805
Source Institution: LAMONT-DOHERTY GEOLOGICAL OBSERVATORY
Country: United States
Platform Name: R/V Conrad
Platform Type Code: 1
Platform Type: ship
Chief Scientist(s): Dr. M Langseth
Project: c2305
Survey Departure Date (yyyymmdd): 19820530
Port of Departure: Callao, Peru
Survey Arrival Date (yyyymmdd): 19850618
Port of Arrival: Guayaquil, Equador
Navigation Instrumentation: tr sat
Geodetic Datum/Position: dead reckoning
Bathymetry Instrumentation: 3.5 PDR
Magnetics Instrumentation: proton procession
Topmost Latitude of Survey: +03
Bottommost Latitude: -13
Leftmost Longitude: -084
Rightmost Longitude: -077
General Digitizing Rate of Bathymetry: 60
Assumed Sound Velocity: 14630
Bathymetric Datum Code: 0
General Digitizing Rate of Magnetics: 50
Reference Field Code: 4
Reference Field: IGRF-75
General Digitizing Rate of Gravity: 100
Theoretical Gravity Formula Code: 2
Reference System Code: 2
Reference System: Potsdam
Number of Data Records: 3805
Min/Max Data Record:
Date: 1982 05 30
Latitude: -12.04766
Longitude: -83.87887
Bathymetry, 2- Way Traveltime: 001051
Bathymetry, Corrected Depth: 79.0
Magnetics Total Field, 1st Sensor: 305500
Magnetics Residual Field: -02433
Observed Gravity: 9779161
Free-Air Anomaly: -1610
Min/Max Data Record:
Date: 1982 06 18
Latitude: +2.25508
Longitude: -77.17166
Bathymetry, 2- Way Traveltime: 078501
Bathymetry, Corrected Depth: 5937.0
Magnetics Total Field, 1st Sensor: 331500
Magnetics Residual Field: +02582
Observed Gravity: 9783245
Free-Air Anomaly: +0719