Survey Identifier: LY73B
Format Acronym: MGD77
Data Center File Number: 09260018
Parameters Surveyed Code: 55000
File Creation Date (yyyymmdd): 19810609
Source Institution: NAVAL OCEAN RESEARCH AND DEV. ACTIVITY
Country: USA
Platform Name: LYNCH
Platform Type Code: 1
Platform Type: SHIP
Chief Scientist(s): S.J.DELEYIANNIS
Survey Departure Date (yyyymmdd): 19730524
Port of Departure: NORVOLK VA.
Survey Arrival Date (yyyymmdd): 19730614
Port of Arrival: WASHINGTON D.C.
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: +42
Bottommost Latitude: +34
Leftmost Longitude: -076
Rightmost Longitude: -065
General Digitizing Rate of Bathymetry: 45
General Sampling Rate of Bathymetry: 1 SEC SWEEP
Assumed Sound Velocity: 14630
Bathymetric Datum Code: 00
General Digitizing Rate of Magnetics: 19
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: 9376
Min/Max Data Record:
Date: 1973 05 24
Latitude: +34.61850
Longitude: -75.75240
Bathymetry, 2- Way Traveltime: 000099
Bathymetry, Corrected Depth: 7.0
Magnetics Total Field, 1st Sensor: 525270
Magnetics Residual Field: -03887
Min/Max Data Record:
Date: 1973 06 14
Latitude: +41.58110
Longitude: -65.82660
Bathymetry, 2- Way Traveltime: 070124
Bathymetry, Corrected Depth: 5317.0
Magnetics Total Field, 1st Sensor: 532090
Magnetics Residual Field: +29340