Survey Identifier: NAV2022
Format Acronym: ARO88
Data Center File Number: 0480-148
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 2022 ~ 3,792 Nautical Miles
Survey Departure Date (yyyymmdd): 19850222
Survey Arrival Date (yyyymmdd): 19850223
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: 20848
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -34
Bottommost Latitude: -46
Leftmost Longitude: -057
Rightmost Longitude: -023
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: 20849
Datafile Header Info: PJCT=C32-552 FLGT= 2022 ,MTH= 2,DAY= 22, YR=1985,JDY= 53 -TO- 53,RCD= 20850,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -56.0900
Latitude: -45.1321
Mag Total Intensity Calc nT: 24028
Time Gmt Sec: 0.2637
Mag East Component Obs nT: 13525
Mag North Component Obs nT: -5459
Mag Horizontal Intensity Calc nT: 14577
Mag Vertical Intensity Obs nT: -21949
Mag Declination Calc Deg: -21.9050
Mag Inclination Calc Deg: -56.1839
Mag Total Intensity Obs nT: 24053
Alt Barometric Ft: 100
Min/Max Data Record:
Longitude: -23.8853
Latitude: -34.8172
Mag Total Intensity Calc nT: 26496
Time Gmt Sec: 86398.2656
Mag East Component Obs nT: 19557
Mag North Component Obs nT: -297
Mag Horizontal Intensity Calc nT: 19660
Mag Vertical Intensity Obs nT: -13848
Mag Declination Calc Deg: -0.8819
Mag Inclination Calc Deg: -35.1903
Mag Total Intensity Obs nT: 26498
Alt Barometric Ft: 26500