Survey Identifier: NAV5090
Format Acronym: ARO88
Data Center File Number: 0550-065
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: Virgil R. Bettencourt
Project: Project Magnet: Project C32-051: Flight 5090 ~ 3,346 Nautical Miles
Survey Departure Date (yyyymmdd): 19891126
Survey Arrival Date (yyyymmdd): 19891127
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: 18689
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -20
Bottommost Latitude: -33
Leftmost Longitude: +055
Rightmost Longitude: +116
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: 18689
Datafile Header Info: PJCT=C32-051 FLGT= 5090 ,MTH= 11,DAY= 26, YR=1989,JDY= 330 -TO- 330,RCD= 18691,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: 55.4989
Latitude: -32.1735
Mag Total Intensity Calc nT: 35756
Time Gmt Sec: 0.5440
Mag East Component Obs nT: 19293
Mag North Component Obs nT: -9501
Mag Horizontal Intensity Calc nT: 20573
Mag Vertical Intensity Obs nT: -54071
Mag Declination Calc Deg: -25.8514
Mag Inclination Calc Deg: -68.0371
Mag Total Intensity Obs nT: 35778
Alt Barometric Ft: 100
Min/Max Data Record:
Longitude: 115.9670
Latitude: -20.8362
Mag Total Intensity Calc nT: 58792
Time Gmt Sec: 86398.5449
Mag East Component Obs nT: 23222
Mag North Component Obs nT: -1170
Mag Horizontal Intensity Calc nT: 23253
Mag Vertical Intensity Obs nT: -28748
Mag Declination Calc Deg: -2.9109
Mag Inclination Calc Deg: -53.4733
Mag Total Intensity Obs nT: 58750
Alt Barometric Ft: 26000