Survey Identifier: NAV3125
Format Acronym: ARO88
Data Center File Number: 0480-201
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 3125 ~ 2,433 Nautical Miles
Survey Departure Date (yyyymmdd): 19851028
Survey Arrival Date (yyyymmdd): 19851028
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: 12688
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +01
Bottommost Latitude: -15
Leftmost Longitude: +152
Rightmost Longitude: -171
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: 12689
Datafile Header Info: PJCT=C32-651 FLGT= 3125 ,MTH= 10,DAY= 28, YR=1985,JDY= 301 -TO- 301,RCD= 12690,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -179.9987
Latitude: -14.3759
Mag Total Intensity Calc nT: 37292
Time Gmt Sec: 19937.2119
Mag East Component Obs nT: 33135
Mag North Component Obs nT: 3671
Mag Horizontal Intensity Calc nT: 33857
Mag Vertical Intensity Obs nT: -22524
Mag Declination Calc Deg: 5.8282
Mag Inclination Calc Deg: -33.0326
Mag Total Intensity Obs nT: 37303
Alt Barometric Ft: 9200
Min/Max Data Record:
Longitude: 179.9983
Latitude: 0.5479
Mag Total Intensity Calc nT: 41433
Time Gmt Sec: 45525.7178
Mag East Component Obs nT: 35970
Mag North Component Obs nT: 7259
Mag Horizontal Intensity Calc nT: 36175
Mag Vertical Intensity Obs nT: -9161
Mag Declination Calc Deg: 12.2646
Mag Inclination Calc Deg: -14.2200
Mag Total Intensity Obs nT: 41445
Alt Barometric Ft: 27900