Survey Identifier: NAV5071
Format Acronym: ARO88
Data Center File Number: 0480-248
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 C32-754, Flight 5071 ~ 3,436 Nautical Miles
Survey Departure Date (yyyymmdd): 19870908
Survey Arrival Date (yyyymmdd): 19870908
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: 18235
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +13
Bottommost Latitude: -08
Leftmost Longitude: +072
Rightmost Longitude: +104
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: 18236
Datafile Header Info: PJCT=C32-754 FLGT= 5071 ,MTH= 8,DAY= 29, YR=1987,JDY= 241 -TO- 241,RCD= 18238,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: 72.6942
Latitude: -7.0636
Mag Total Intensity Calc nT: 39798
Time Gmt Sec: 47565.7729
Mag East Component Obs nT: 32287
Mag North Component Obs nT: -4513
Mag Horizontal Intensity Calc nT: 32568
Mag Vertical Intensity Obs nT: -23184
Mag Declination Calc Deg: -7.7677
Mag Inclination Calc Deg: -35.4460
Mag Total Intensity Obs nT: 39745
Alt Barometric Ft: 100
Min/Max Data Record:
Longitude: 103.9468
Latitude: 12.1961
Mag Total Intensity Calc nT: 41981
Time Gmt Sec: 85496.5605
Mag East Component Obs nT: 41007
Mag North Component Obs nT: -20
Mag Horizontal Intensity Calc nT: 41014
Mag Vertical Intensity Obs nT: 5608
Mag Declination Calc Deg: -0.0292
Mag Inclination Calc Deg: 7.8001
Mag Total Intensity Obs nT: 41936
Alt Barometric Ft: 25100