Survey Identifier: NAV3171
Format Acronym: ARO88
Data Center File Number: 0480-315
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 C32-853, Flight 3171 ~ 1,951 Nautical Miles
Survey Departure Date (yyyymmdd): 19880515
Survey Arrival Date (yyyymmdd): 19880516
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: 11299
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +15
Bottommost Latitude: +03
Leftmost Longitude: +100
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: 11299
Datafile Header Info: PJCT=C32-853 FLGT= 3171 ,MTH= 5,DAY= 15, YR=1988,JDY= 136 -TO- 137
Min/Max Data Record:
Longitude: 100.5761
Latitude: 3.9559
Mag Total Intensity Calc nT: 34973
Time Gmt Sec: 0.6406
Mag East Component Obs nT: 34271
Mag North Component Obs nT: -3300
Mag Horizontal Intensity Calc nT: 34271
Mag Vertical Intensity Obs nT: -7875
Mag Declination Calc Deg: -4.9298
Mag Inclination Calc Deg: -11.0332
Mag Total Intensity Obs nT: 40454
Alt Barometric Ft: 100
Min/Max Data Record:
Longitude: 120.2817
Latitude: 14.7984
Mag Total Intensity Calc nT: 43418
Time Gmt Sec: 86398.1406
Mag East Component Obs nT: 41583
Mag North Component Obs nT: 3382
Mag Horizontal Intensity Calc nT: 41591
Mag Vertical Intensity Obs nT: 18072
Mag Declination Calc Deg: 5.5498
Mag Inclination Calc Deg: 27.3261
Mag Total Intensity Obs nT: 41993
Alt Barometric Ft: 26100