Survey Identifier: NAV4162
Format Acronym: ARO88
Data Center File Number: 0560-035
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 4162 ~ 3,084 Nautical Miles
Survey Departure Date (yyyymmdd): 19930207
Survey Arrival Date (yyyymmdd): 19930207
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: 17034
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -03
Bottommost Latitude: -18
Leftmost Longitude: +177
Rightmost Longitude: -149
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: 17032
Datafile Header Info: PJCT=D32-352 FLGT= 4162 ,MTH= 2,DAY= 7, YR=1993,JDY= 38 -TO- 38,RCD= 17036,NAV=GPS ,CMP=RLG
Min/Max Data Record:
Longitude: -179.9980
Latitude: -17.8875
Mag Total Intensity Calc nT: 35257
Time Gmt Sec: 29983.9980
Mag East Component Obs nT: 30892
Mag North Component Obs nT: 6149
Mag Horizontal Intensity Calc nT: 31590
Mag Vertical Intensity Obs nT: -27347
Mag Declination Calc Deg: 10.2207
Mag Inclination Calc Deg: -39.4853
Mag Total Intensity Obs nT: 0
Alt Barometric Ft: 518
Min/Max Data Record:
Longitude: 179.9992
Latitude: -3.6243
Mag Total Intensity Calc nT: 43158
Time Gmt Sec: 64366.1328
Mag East Component Obs nT: 34525
Mag North Component Obs nT: 7180
Mag Horizontal Intensity Calc nT: 35110
Mag Vertical Intensity Obs nT: -6711
Mag Declination Calc Deg: 12.7274
Mag Inclination Calc Deg: -10.9308
Mag Total Intensity Obs nT: 89011
Alt Barometric Ft: 26821