Survey Identifier: NAV3160
Format Acronym: ARO88
Data Center File Number: 0480-288
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 C32-851, Flight 3160 ~ 4,120 Nautical Miles
Survey Departure Date (yyyymmdd): 19871201
Survey Arrival Date (yyyymmdd): 19871201
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: 19675
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +30
Bottommost Latitude: +21
Leftmost Longitude: +127
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: 19676
Datafile Header Info: PJCT=C32-851 FLGT= 3160 ,MTH= 12,DAY= 1, YR=1987,JDY= 335 -TO- 335,RCD= 19678,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -179.9978
Latitude: 21.2274
Mag Total Intensity Calc nT: 35502
Time Gmt Sec: 21549.8408
Mag East Component Obs nT: 26525
Mag North Component Obs nT: -2700
Mag Horizontal Intensity Calc nT: 27007
Mag Vertical Intensity Obs nT: 22102
Mag Declination Calc Deg: -4.3843
Mag Inclination Calc Deg: 35.7249
Mag Total Intensity Obs nT: 35491
Alt Barometric Ft: -100
Min/Max Data Record:
Longitude: 179.9985
Latitude: 29.3221
Mag Total Intensity Calc nT: 44157
Time Gmt Sec: 61776.2495
Mag East Component Obs nT: 35285
Mag North Component Obs nT: 5736
Mag Horizontal Intensity Calc nT: 35378
Mag Vertical Intensity Obs nT: 26516
Mag Declination Calc Deg: 11.7864
Mag Inclination Calc Deg: 40.8777
Mag Total Intensity Obs nT: 44095
Alt Barometric Ft: 29200