Survey Identifier: C2601

Format Acronym: MGD77
Data Center File Number: 01010247
Parameters Surveyed Code: 51531
File Creation Date (yyyymmdd): 19910214
Source Institution: Lamont-Doherty Geological Observatory
Country: United States
Platform Name: R/V Conrad
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): J. Brozena
Project: c2601
Funding: NRL/ONR
Survey Departure Date (yyyymmdd): 19850110
Port of Departure: Ascension Island
Survey Arrival Date (yyyymmdd): 19850203
Port of Arrival: Ascension Island
Navigation Instrumentation: TRANSIT SATELLITE, GPS
Bathymetry Instrumentation: seabeam vertical beam
Additional Forms of Bathymetric Data: 3.5 PDR
Gravity Instrumentation: Bell BGM-3
Topmost Latitude of Survey: -06
Bottommost Latitude: -11
Leftmost Longitude: -015
Rightmost Longitude: -012
General Digitizing Rate of Bathymetry: 10
General Sampling Rate of Bathymetry: VAR W/ DEPTH
Assumed Sound Velocity: 15000
Bathymetric Datum Code: 0
General Digitizing Rate of Gravity: 10
General Sampling Rate of Gravity: 60
Theoretical Gravity Formula Code: 2
Reference System Code: 2
Reference System: Potsdam
Additional Documentation: Some dredging was reported to have taken place.
Number of Data Records: 35258

Min/Max Data Record:
Date: 1985 01 10
Latitude: -10.28602
Longitude: -14.46198
Bathymetry, 2- Way Traveltime: 001508
Bathymetry, Corrected Depth: 113.0
Observed Gravity: 9779701
Free-Air Anomaly: -0898

Min/Max Data Record:
Date: 1985 02 03
Latitude: -6.86472
Longitude: -12.23922
Bathymetry, 2- Way Traveltime: 068841
Bathymetry, Corrected Depth: 5192.0
Observed Gravity: 9783824
Free-Air Anomaly: +1423