Survey Identifier: NAV2017
Format Acronym: ARO88
Data Center File Number: 0480-164
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 C32-552, Flight 2017 ~ 3,273 Nautical Miles
Survey Departure Date (yyyymmdd): 19850202
Survey Arrival Date (yyyymmdd): 19850203
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: 17530
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -04
Bottommost Latitude: -12
Leftmost Longitude: -015
Rightmost Longitude: +009
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: 17531
Datafile Header Info: PJCT=C32-552 FLGT= 2017 ,MTH= 2,DAY= 2, YR=1985,JDY= 33 -TO- 33,RCD= 17532,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -14.4849
Latitude: -11.1409
Mag Total Intensity Calc nT: 27626
Time Gmt Sec: 0.4346
Mag East Component Obs nT: 19666
Mag North Component Obs nT: -7654
Mag Horizontal Intensity Calc nT: 20505
Mag Vertical Intensity Obs nT: -23613
Mag Declination Calc Deg: -19.9608
Mag Inclination Calc Deg: -48.7264
Mag Total Intensity Obs nT: 27875
Alt Barometric Ft: 415
Min/Max Data Record:
Longitude: 8.1015
Latitude: -3.9979
Mag Total Intensity Calc nT: 31931
Time Gmt Sec: 86399.4365
Mag East Component Obs nT: 25592
Mag North Component Obs nT: -3474
Mag Horizontal Intensity Calc nT: 25832
Mag Vertical Intensity Obs nT: -15503
Mag Declination Calc Deg: -7.7316
Mag Inclination Calc Deg: -31.9225
Mag Total Intensity Obs nT: 31936
Alt Barometric Ft: 24900