Survey Identifier: NAV3176
Format Acronym: ARO88
Data Center File Number: 0480-384
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 3176 ~ 2,143 Nautical Miles
Survey Departure Date (yyyymmdd): 19880820
Survey Arrival Date (yyyymmdd): 19880821
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: 11011
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +38
Bottommost Latitude: +21
Leftmost Longitude: -159
Rightmost Longitude: -121
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: 11011
Datafile Header Info: PJCT=C32-854 FLGT= 3176 ,MTH= 8,DAY= 20, YR=1988,JDY= 233 -TO- 233
Min/Max Data Record:
Longitude: -158.0718
Latitude: 21.1114
Mag Total Intensity Calc nT: 35342
Time Gmt Sec: 0.5518
Mag East Component Obs nT: 23093
Mag North Component Obs nT: 4536
Mag Horizontal Intensity Calc nT: 23978
Mag Vertical Intensity Obs nT: 22041
Mag Declination Calc Deg: 9.5341
Mag Inclination Calc Deg: 38.4655
Mag Total Intensity Obs nT: 35656
Alt Barometric Ft: -100
Min/Max Data Record:
Longitude: -121.9561
Latitude: 37.3885
Mag Total Intensity Calc nT: 50409
Time Gmt Sec: 86398.5518
Mag East Component Obs nT: 27615
Mag North Component Obs nT: 6826
Mag Horizontal Intensity Calc nT: 28115
Mag Vertical Intensity Obs nT: 44248
Mag Declination Calc Deg: 16.1287
Mag Inclination Calc Deg: 61.4356
Mag Total Intensity Obs nT: 50307
Alt Barometric Ft: 32000