Survey Identifier: NAV4050


Format Acronym: ARO88
Data Center File Number: 0480-089
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 C32-452, Flight 4050 ~ 2,999 Nautical Miles
Survey Departure Date (yyyymmdd): 19840307
Survey Arrival Date (yyyymmdd): 19840307
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: 15625
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -37
Bottommost Latitude: -49
Leftmost Longitude: +126
Rightmost Longitude: +167
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: 15625
Datafile Header Info: PJCT=C32-452 FLGT= 4050 ,MTH= 3,DAY= 7, YR=1984,JDY= 67 -TO- 67,RCD= 15626,NAV=INS1,CMP=INS1

Min/Max Data Record:
Longitude: 126.0383
Latitude: -48.5366
Mag Total Intensity Calc nT: 54937
Time Gmt Sec: 31493.0420
Mag East Component Obs nT: 11019
Mag North Component Obs nT: -704
Mag Horizontal Intensity Calc nT: 13298
Mag Vertical Intensity Obs nT: -63753
Mag Declination Calc Deg: -2.9126
Mag Inclination Calc Deg: -78.2054
Mag Total Intensity Obs nT: 56462
Alt Barometric Ft: 19900

Min/Max Data Record:
Longitude: 166.6775
Latitude: -37.0031
Mag Total Intensity Calc nT: 65149
Time Gmt Sec: 64218.5127
Mag East Component Obs nT: 23151
Mag North Component Obs nT: 15018
Mag Horizontal Intensity Calc nT: 24255
Mag Vertical Intensity Obs nT: -51004
Mag Declination Calc Deg: 53.7318
Mag Inclination Calc Deg: -64.5665
Mag Total Intensity Obs nT: 65146
Alt Barometric Ft: 28900