Survey Identifier: C2706
Format Acronym: MGD77
Data Center File Number: 01010266
Parameters Surveyed Code: 55533
File Creation Date (yyyymmdd): 19901126
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 Weissel
Project: c2706
Survey Departure Date (yyyymmdd): 19860708
Port of Departure: Colombo, Sri Lanka
Survey Arrival Date (yyyymmdd): 19860728
Port of Arrival: Colombo, Sri Lanka
Navigation Instrumentation: GPS, 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: +07
Bottommost Latitude: -06
Leftmost Longitude: +078
Rightmost Longitude: +082
General Digitizing Rate of Bathymetry: 50
General Sampling Rate of Bathymetry: contineous
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
Reference System: Potsdam
Number of Data Records: 27835
Min/Max Data Record:
Date: 1986 07 08
Latitude: -5.53438
Longitude: +78.96394
Bathymetry, 2- Way Traveltime: 000148
Bathymetry, Corrected Depth: 11.0
Magnetics Total Field, 1st Sensor: 394630
Magnetics Residual Field: -08100
Observed Gravity: 9779044
Free-Air Anomaly: -1214
Min/Max Data Record:
Date: 1986 07 28
Latitude: +6.97512
Longitude: +81.44631
Bathymetry, 2- Way Traveltime: 068693
Bathymetry, Corrected Depth: 5179.0
Magnetics Total Field, 1st Sensor: 415820
Magnetics Residual Field: +00828
Observed Gravity: 9781468
Free-Air Anomaly: +0431