Survey Identifier: NAV4075
Format Acronym: ARO88
Data Center File Number: 0480-203
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 C32-651, Flight 4075 ~ 1,613 Nautical Miles
Survey Departure Date (yyyymmdd): 19851017
Survey Arrival Date (yyyymmdd): 19851017
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: 9967
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -14
Bottommost Latitude: -23
Leftmost Longitude: -171
Rightmost Longitude: -149
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: 9967
Datafile Header Info: PJCT=C32-651 FLGT= 4075 ,MTH= 10,DAY= 17, YR=1985,JDY= 290 -TO- 290,RCD= 9968,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -170.9391
Latitude: -22.8231
Mag Total Intensity Calc nT: 36365
Time Gmt Sec: 44488.3296
Mag East Component Obs nT: 30086
Mag North Component Obs nT: 6285
Mag Horizontal Intensity Calc nT: 30948
Mag Vertical Intensity Obs nT: -26048
Mag Declination Calc Deg: 11.0636
Mag Inclination Calc Deg: -40.0389
Alt Barometric Ft: 100
Min/Max Data Record:
Longitude: -149.5616
Latitude: -14.2717
Mag Total Intensity Calc nT: 40510
Time Gmt Sec: 65209.9219
Mag East Component Obs nT: 34139
Mag North Component Obs nT: 7383
Mag Horizontal Intensity Calc nT: 34814
Mag Vertical Intensity Obs nT: -17694
Mag Declination Calc Deg: 13.6736
Mag Inclination Calc Deg: -28.4738
Alt Barometric Ft: 30900