Survey Identifier: C2604
Format Acronym: MGD77
Data Center File Number: 01010250
Parameters Surveyed Code: 55533
File Creation Date (yyyymmdd): 19901127
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. J Ladd
Project: c2604
Survey Departure Date (yyyymmdd): 19850317
Port of Departure: Bridgetown, Barbados
Survey Arrival Date (yyyymmdd): 19850401
Port of Arrival: Bridgetown, Barbados
Navigation Instrumentation: tr sat
Geodetic Datum/Position: dead reckoning
Bathymetry Instrumentation: 3.5 PDR
Magnetics Instrumentation: proton procession
Gravity Instrumentation: Bell BGM-3
Topmost Latitude of Survey: +17
Bottommost Latitude: +13
Leftmost Longitude: -061
Rightmost Longitude: -057
General Digitizing Rate of Bathymetry: 50
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 0
General Digitizing Rate of Magnetics: 10
Reference Field Code: 4
Reference Field: IGRF-75
General Digitizing Rate of Gravity: 10
General Sampling Rate of Gravity: 60
Theoretical Gravity Formula Code: 2
Reference System Code: 2
Number of Data Records: 18502
Min/Max Data Record:
Date: 1985 03 20
Latitude: +13.10899
Longitude: -60.56008
Bathymetry, 2- Way Traveltime: 003333
Bathymetry, Corrected Depth: 253.0
Magnetics Total Field, 1st Sensor: 361050
Magnetics Residual Field: -04200
Observed Gravity: 9780939
Free-Air Anomaly: -2786
Min/Max Data Record:
Date: 1985 04 02
Latitude: +16.88128
Longitude: -57.40690
Bathymetry, 2- Way Traveltime: 077068
Bathymetry, Corrected Depth: 5844.0
Magnetics Total Field, 1st Sensor: 387620
Magnetics Residual Field: -01610
Observed Gravity: 9784537
Free-Air Anomaly: +0071