Survey Identifier: NAV4144


Format Acronym: ARO88
Data Center File Number: 0550-053
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 4144 ~ 3,378 Nautical Miles
Survey Departure Date (yyyymmdd): 19891111
Survey Arrival Date (yyyymmdd): 19891111
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: 18044
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -30
Bottommost Latitude: -55
Leftmost Longitude: +144
Rightmost Longitude: +175
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: 18044
Datafile Header Info: PJCT=C32-051 FLGT= 4144 ,MTH= 11,DAY= 11, YR=1989,JDY= 315 -TO- 315,RCD= 18046,NAV=ESG ,CMP=ESG

Min/Max Data Record:
Longitude: 144.7745
Latitude: -54.3659
Mag Total Intensity Calc nT: 52847
Time Gmt Sec: 38061.3945
Mag East Component Obs nT: 9122
Mag North Component Obs nT: 3175
Mag Horizontal Intensity Calc nT: 9668
Mag Vertical Intensity Obs nT: -65374
Mag Declination Calc Deg: 10.7112
Mag Inclination Calc Deg: -81.5728
Mag Total Intensity Obs nT: 22568
Alt Barometric Ft: -200

Min/Max Data Record:
Longitude: 174.8028
Latitude: -30.9941
Mag Total Intensity Calc nT: 66139
Time Gmt Sec: 74777.8711
Mag East Component Obs nT: 26438
Mag North Component Obs nT: 8545
Mag Horizontal Intensity Calc nT: 27548
Mag Vertical Intensity Obs nT: -45100
Mag Declination Calc Deg: 24.7082
Mag Inclination Calc Deg: -58.5821
Mag Total Intensity Obs nT: 66119
Alt Barometric Ft: 32800