Survey Identifier: NAV5074
Format Acronym: ARO88
Data Center File Number: 0480-319
Parameters Surveyed Code: FXD
File Creation Date (yyyymmdd): 19890906
Source Institution: US Naval Oceanographic Office
Country: INTERNATIONAL
Platform Name: RP-3D ORION
Platform Type Code: 3
Platform Type: PLANE
Chief Scientists: Fred M. Valentine
Project: Project Magnet: Project C32-853, Flight 5074 ~ 1,179 Nautical Miles
Survey Departure Date (yyyymmdd): 19880521
Survey Arrival Date (yyyymmdd): 19880521
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: 5911
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -31
Bottommost Latitude: -35
Leftmost Longitude: +115
Rightmost Longitude: +139
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: 5913
Datafile Header Info: PJCT=C32-853 FLGT= 5074 ,MTH= 5,DAY= 31, YR=1988,JDY= 152 -TO- 152
Min/Max Data Record:
Longitude: 115.9298
Latitude: -34.7598
Mag Total Intensity Calc nT: 57894
Time Gmt Sec: 47368.7358
Mag East Component Obs nT: 21522
Mag North Component Obs nT: -1765
Mag Horizontal Intensity Calc nT: 22082
Mag Vertical Intensity Obs nT: -57622
Mag Declination Calc Deg: -4.3748
Mag Inclination Calc Deg: -67.9430
Mag Total Intensity Obs nT: 58668
Alt Barometric Ft: -300
Min/Max Data Record:
Longitude: 138.6305
Latitude: -31.9302
Mag Total Intensity Calc nT: 62362
Time Gmt Sec: 59388.7607
Mag East Component Obs nT: 23842
Mag North Component Obs nT: 4942
Mag Horizontal Intensity Calc nT: 23854
Mag Vertical Intensity Obs nT: -53116
Mag Declination Calc Deg: 12.9318
Mag Inclination Calc Deg: -66.1528
Mag Total Intensity Obs nT: 60254
Alt Barometric Ft: 23600