Survey Identifier: NAV1228


Format Acronym: ARO88
Data Center File Number: 0570-001
Parameters Surveyed Code: FXD
File Creation Date (yyyymmdd): 19940506
Source Institution: US Naval Oceanographic Office
Country: INTERNATIONAL
Platform Name: RP-3D ORION
Platform Type Code: 3
Platform Type: PLANE
Chief Scientists: Donald R. Wilson
Project: Project Magnet: Project D32-452: Flight 1228 ~ 3,646 Nautical Miles
Survey Departure Date (yyyymmdd): 19940117
Survey Arrival Date (yyyymmdd): 19940117
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: 18519
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +39
Bottommost Latitude: +14
Leftmost Longitude: -077
Rightmost Longitude: -022
Archive NGDC Tape Letter: W
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: 18519
Datafile Header Info: PJCT=D32-452 FLGT= 1228 ,MTH= 1,DAY= 17, YR=1994,JDY= 17 -TO- 17,RCD= 18521,NAV=GPS ,CMP=RLG

Min/Max Data Record:
Longitude: -76.4855
Latitude: 14.9596
Mag Total Intensity Calc nT: 32615
Time Gmt Sec: 2012.4910
Mag East Component Obs nT: 20333
Mag North Component Obs nT: -8970
Mag Horizontal Intensity Calc nT: 20655
Mag Vertical Intensity Obs nT: 10125
Mag Declination Calc Deg: -999.0000
Mag Inclination Calc Deg: -999.0000
Mag Total Intensity Obs nT: 32523
Alt Barometric Ft: 2234

Min/Max Data Record:
Longitude: -22.9426
Latitude: 38.2903
Mag Total Intensity Calc nT: 53626
Time Gmt Sec: 39539.0898
Mag East Component Obs nT: 30813
Mag North Component Obs nT: -3571
Mag Horizontal Intensity Calc nT: 31549
Mag Vertical Intensity Obs nT: 49484
Mag Declination Calc Deg: -9.7963
Mag Inclination Calc Deg: 67.3431
Mag Total Intensity Obs nT: 53622
Alt Barometric Ft: 28041