Survey Identifier: NAV1223
Format Acronym: ARO88
Data Center File Number: 0560-007
Parameters Surveyed Code: FXD
File Creation Date (yyyymmdd): 19940506
Source Institution: US Naval Oceanographic Office
Country: INTERNATIONAL
Platform Name: RP-3D ORION
Chief Scientists: Donald R. Wilson
Project: Project Magnet: Project xxx-xxx: Flight XXXXX ~ x,xxx Nautical Miles
Survey Departure Date (yyyymmdd): 19930808
Survey Arrival Date (yyyymmdd): 19930808
Flight Line Spacings: Single Flight Line, Variable Directions
Magnetometers Used: Vector and Scalar Magnetometers
Aircraft Altitude: 25,000 FT AG
Aircraft Velocity: 240 Knots
Sampling Rate: 2
Sensor Tow Distance: STINGER
Total Observations: 13925
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +41
Bottommost Latitude: +37
Leftmost Longitude: -077
Rightmost Longitude: -027
Additional Documentation: To remove high frequency noise, a low pass filter has been applied to all the, flight line data above 15,000 feet. Data at the beginning and end of a flight, are noisy because the aircraft is maneuvering during it's climb or descent to, or from survey altitude which is approximately 25,000 feet. Data below 15,000, feet or climb and descent data are not smoothed.
Number of Data Records: 13925
Datafile Header Info: PJCT=D32-353 FLGT= 1223 ,MTH= 8,DAY= 8, YR=1993,JDY= 220 -TO- 220,RCD= 13927,NAV=GPS ,CMP=RLG
Min/Max Data Record:
Longitude: -76.5482
Latitude: 36.9994
Mag Total Intensity Calc nT: 44086
Time Gmt Sec: 14213.7129
Mag East Component Obs nT: 20182
Mag North Component Obs nT: -7888
Mag Horizontal Intensity Calc nT: 20539
Mag Vertical Intensity Obs nT: 36354
Mag Declination Calc Deg: -20.1763
Mag Inclination Calc Deg: 55.4511
Mag Total Intensity Obs nT: 44107
Alt Barometric Ft: 951
Min/Max Data Record:
Longitude: -27.4312
Latitude: 40.0340
Mag Total Intensity Calc nT: 53922
Time Gmt Sec: 42530.9141
Mag East Component Obs nT: 24354
Mag North Component Obs nT: -3733
Mag Horizontal Intensity Calc nT: 25041
Mag Vertical Intensity Obs nT: 49826
Mag Declination Calc Deg: -10.3817
Mag Inclination Calc Deg: 67.5649
Mag Total Intensity Obs nT: 53942
Alt Barometric Ft: 23917