Survey Identifier: NAV4160
Format Acronym: ARO88
Data Center File Number: 0560-033
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 D32-352: Flight 4160 ~ 3,704 Nautical Miles
Survey Departure Date (yyyymmdd): 19930203
Survey Arrival Date (yyyymmdd): 19930203
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: 21109
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +01
Bottommost Latitude: -18
Leftmost Longitude: -150
Rightmost Longitude: -129
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: 21109
Datafile Header Info: PJCT=D32-352 FLGT= 4160 ,MTH= 2,DAY= 3, YR=1993,JDY= 34 -TO- 34,RCD= 21111,NAV=GPS ,CMP=RLG
Min/Max Data Record:
Longitude: -149.7635
Latitude: -17.7220
Mag Total Intensity Calc nT: 31416
Time Gmt Sec: 23921.8047
Mag East Component Obs nT: 30775
Mag North Component Obs nT: 4689
Mag Horizontal Intensity Calc nT: 31286
Mag Vertical Intensity Obs nT: -19199
Mag Declination Calc Deg: 8.6080
Mag Inclination Calc Deg: -31.1558
Mag Total Intensity Obs nT: 31403
Alt Barometric Ft: 1627
Min/Max Data Record:
Longitude: -129.9626
Latitude: 0.1114
Mag Total Intensity Calc nT: 37167
Time Gmt Sec: 66437.3516
Mag East Component Obs nT: 31998
Mag North Component Obs nT: 7017
Mag Horizontal Intensity Calc nT: 32438
Mag Vertical Intensity Obs nT: 4094
Mag Declination Calc Deg: 12.7664
Mag Inclination Calc Deg: 7.4504
Mag Total Intensity Obs nT: 37178
Alt Barometric Ft: 23937