Survey Identifier: LY73E
Format Acronym: MGD77
Data Center File Number: 09260019
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): G.L.JOHNSON
Survey Departure Date (yyyymmdd): 19730917
Port of Departure: REYJAVIK ICELAND
Survey Arrival Date (yyyymmdd): 19790931
Port of Arrival: REYJAVIK
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: +73
Bottommost Latitude: +66
Leftmost Longitude: -027
Rightmost Longitude: -004
General Digitizing Rate of Bathymetry: 13
General Sampling Rate of Bathymetry: 1 SEC SWEEP
Assumed Sound Velocity: 14630
Bathymetric Datum Code: 00
General Digitizing Rate of Magnetics: 28
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: 13643
Min/Max Data Record:
Date: 1973 09 17
Latitude: +66.34480
Longitude: -26.35660
Bathymetry, 2- Way Traveltime: 000474
Bathymetry, Corrected Depth: 36.0
Magnetics Total Field, 1st Sensor: 517340
Magnetics Residual Field: -08290
Min/Max Data Record:
Date: 1973 09 30
Latitude: +72.47660
Longitude: -4.00160
Bathymetry, 2- Way Traveltime: 050649
Bathymetry, Corrected Depth: 3742.0
Magnetics Total Field, 1st Sensor: 534260
Magnetics Residual Field: +10412