Survey Identifier: NAV5093
Format Acronym: ARO88
Data Center File Number: 0550-067
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 C32-052: Flight 5093 ~ 3,392 Nautical Miles
Survey Departure Date (yyyymmdd): 19900203
Survey Arrival Date (yyyymmdd): 19900203
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: 17607
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -31
Bottommost Latitude: -37
Leftmost Longitude: +115
Rightmost Longitude: +152
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: 17607
Datafile Header Info: PJCT=C32-052 FLGT= 5093 ,MTH= 2,DAY= 3, YR=1990,JDY= 34 -TO- 34,RCD= 17614,NAV=GPS ,CMP=RLG
Min/Max Data Record:
Longitude: 115.9429
Latitude: -36.0273
Mag Total Intensity Calc nT: 56395
Time Gmt Sec: 38207.1831
Mag East Component Obs nT: 20067
Mag North Component Obs nT: -1585
Mag Horizontal Intensity Calc nT: 20129
Mag Vertical Intensity Obs nT: -57091
Mag Declination Calc Deg: -4.5148
Mag Inclination Calc Deg: -70.5379
Mag Total Intensity Obs nT: 56377
Alt Barometric Ft: 21900
Min/Max Data Record:
Longitude: 151.8939
Latitude: -31.7805
Mag Total Intensity Calc nT: 60825
Time Gmt Sec: 82253.8613
Mag East Component Obs nT: 25252
Mag North Component Obs nT: 5849
Mag Horizontal Intensity Calc nT: 25916
Mag Vertical Intensity Obs nT: -50103
Mag Declination Calc Deg: 13.0640
Mag Inclination Calc Deg: -62.6734
Mag Total Intensity Obs nT: 60837
Alt Barometric Ft: 22912