Survey Identifier: BA75B
Format Acronym: MGD77
Data Center File Number: 09620004
Parameters Surveyed Code: 55000
File Creation Date (yyyymmdd): 19810609
Source Institution: NAVAL OCEAN RESEARCH AND DEV. ACTIVITY
Country: USA
Platform Name: BARTLETT
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): J.S.FREITAG
Survey Departure Date (yyyymmdd): 19750130
Port of Departure: TERCIERA
Survey Arrival Date (yyyymmdd): 19750225
Port of Arrival: SAN MIGUEL
Navigation Instrumentation: SATALLITE
Geodetic Datum/Position: SATELLITE/DEAD RECONKING
Bathymetry Instrumentation: 3.5 OR 12 KHZ FATHOMETER
Additional Forms of Bathymetric Data: ANALOG
Magnetics Instrumentation: PROTON PRECESSION
Additional Forms of Magnetics Data: ANALOG
Topmost Latitude of Survey: +40
Bottommost Latitude: +36
Leftmost Longitude: -035
Rightmost Longitude: -025
General Digitizing Rate of Bathymetry: 27
General Sampling Rate of Bathymetry: 1 SEC SWEEP
Assumed Sound Velocity: 14630
Bathymetric Datum Code: 00
General Digitizing Rate of Magnetics: 27
General Sampling Rate of Magnetics: 03
Magnetic Sensor Tow Distance: 1000
Reference Field Code: 03
Reference Field: IGRF-65
Method of Applying Residual Field: INTERPOLATION BETWEEN NAV POINTS
Number of Data Records: 21767
Min/Max Data Record:
Date: 1975 01 30
Latitude: +36.45680
Longitude: -34.32970
Bathymetry, 2- Way Traveltime: 001899
Bathymetry, Corrected Depth: 142.0
Magnetics Total Field, 1st Sensor: 437910
Magnetics Residual Field: -09356
Min/Max Data Record:
Date: 1975 02 22
Latitude: +39.35330
Longitude: -25.61360
Bathymetry, 2- Way Traveltime: 040874
Bathymetry, Corrected Depth: 3074.0
Magnetics Total Field, 1st Sensor: 466640
Magnetics Residual Field: +12307