Survey Identifier: NAV3173
Format Acronym: ARO88
Data Center File Number: 0480-381
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 C32-854, Flight 3173 ~ 2,143 Nautical Miles
Survey Departure Date (yyyymmdd): 19880716
Survey Arrival Date (yyyymmdd): 19880717
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: 10960
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +38
Bottommost Latitude: +21
Leftmost Longitude: -159
Rightmost Longitude: -122
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: 10960
Datafile Header Info: PJCT=C32-854 FLGT= 3173 ,MTH= 7,DAY= 16, YR=1988,JDY= 198 -TO- 198
Min/Max Data Record:
Longitude: -158.3022
Latitude: 21.1137
Mag Total Intensity Calc nT: 35492
Time Gmt Sec: 1.1055
Mag East Component Obs nT: 22836
Mag North Component Obs nT: 4988
Mag Horizontal Intensity Calc nT: 23871
Mag Vertical Intensity Obs nT: 22058
Mag Declination Calc Deg: 10.4385
Mag Inclination Calc Deg: 38.2477
Mag Total Intensity Obs nT: 35497
Alt Barometric Ft: -100
Min/Max Data Record:
Longitude: -122.0616
Latitude: 37.5133
Mag Total Intensity Calc nT: 50489
Time Gmt Sec: 86398.6064
Mag East Component Obs nT: 27613
Mag North Component Obs nT: 6956
Mag Horizontal Intensity Calc nT: 28157
Mag Vertical Intensity Obs nT: 44342
Mag Declination Calc Deg: 16.7473
Mag Inclination Calc Deg: 61.7050
Mag Total Intensity Obs nT: 50483
Alt Barometric Ft: 31100