Survey Identifier: NAV1230
Format Acronym: ARO88
Data Center File Number: 0570-003
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 1230 ~ 3,469 Nautical Miles
Survey Departure Date (yyyymmdd): 19940121
Survey Arrival Date (yyyymmdd): 19940122
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: 18389
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +17
Bottommost Latitude: -19
Leftmost Longitude: -036
Rightmost Longitude: -014
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: 18389
Datafile Header Info: PJCT=D32-452 FLGT= 1230 ,MTH= 1,DAY= 21, YR=1994,JDY= 21 -TO- 22,RCD= 18391,NAV=GPS ,CMP=RLG
Min/Max Data Record:
Longitude: -35.0069
Latitude: -18.2425
Mag Total Intensity Calc nT: 24431
Time Gmt Sec: 1.4110
Mag East Component Obs nT: 18261
Mag North Component Obs nT: -9237
Mag Horizontal Intensity Calc nT: 19959
Mag Vertical Intensity Obs nT: -17658
Mag Declination Calc Deg: -999.0000
Mag Inclination Calc Deg: -999.0000
Mag Total Intensity Obs nT: 24426
Alt Barometric Ft: 1968
Min/Max Data Record:
Longitude: -14.5129
Latitude: 16.9268
Mag Total Intensity Calc nT: 33172
Time Gmt Sec: 86399.4063
Mag East Component Obs nT: 30790
Mag North Component Obs nT: -6809
Mag Horizontal Intensity Calc nT: 31554
Mag Vertical Intensity Obs nT: 10429
Mag Declination Calc Deg: -12.4834
Mag Inclination Calc Deg: 18.3429
Mag Total Intensity Obs nT: 33213
Alt Barometric Ft: 27024