Survey Identifier: NAV3075
Format Acronym: ARO88
Data Center File Number: 0480-047
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 C32-351: Flight 3075 ~ 3,558 Nautical Miles
Survey Departure Date (yyyymmdd): 19821103
Survey Arrival Date (yyyymmdd): 19821103
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: 18583
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +22
Bottommost Latitude: -23
Leftmost Longitude: -172
Rightmost Longitude: -158
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: 18585
Datafile Header Info: PJCT=C32-351 FLGT= 3075 ,MTH= 11,DAY= 3, YR=1982,JDY= 307 -TO- 307,RCD= 18586,NAV=INS1,CMP=INS2
Min/Max Data Record:
Longitude: -171.0239
Latitude: -22.6648
Mag Total Intensity Calc nT: 32736
Time Gmt Sec: 29535.2429
Mag East Component Obs nT: 26980
Mag North Component Obs nT: 5071
Mag Horizontal Intensity Calc nT: 27468
Mag Vertical Intensity Obs nT: -27494
Mag Declination Calc Deg: 9.3522
Mag Inclination Calc Deg: -41.2077
Mag Total Intensity Obs nT: 35694
Alt Barometric Ft: -100
Min/Max Data Record:
Longitude: -158.0329
Latitude: 21.3068
Mag Total Intensity Calc nT: 41746
Time Gmt Sec: 68906.6377
Mag East Component Obs nT: 33653
Mag North Component Obs nT: 7490
Mag Horizontal Intensity Calc nT: 34341
Mag Vertical Intensity Obs nT: 23055
Mag Declination Calc Deg: 13.7663
Mag Inclination Calc Deg: 39.7690
Mag Total Intensity Obs nT: 41773
Alt Barometric Ft: 239000