Survey Identifier: NAV3149
Format Acronym: ARO88
Data Center File Number: 0480-279
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 3149 ~ 3,721 Nautical Miles
Survey Departure Date (yyyymmdd): 19871022
Survey Arrival Date (yyyymmdd): 19871022
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: 20290
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +62
Bottommost Latitude: +51
Leftmost Longitude: -171
Rightmost Longitude: -134
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: 20292
Datafile Header Info: PJCT=C32-851 FLGT= 3149 ,MTH= 10,DAY= 22, YR=1987,JDY= 295 -TO- 295,RCD= 20293,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -170.1075
Latitude: 51.9389
Mag Total Intensity Calc nT: 48739
Time Gmt Sec: 3137.3501
Mag East Component Obs nT: 13806
Mag North Component Obs nT: 4476
Mag Horizontal Intensity Calc nT: 15278
Mag Vertical Intensity Obs nT: 43764
Mag Declination Calc Deg: 12.1510
Mag Inclination Calc Deg: 63.8794
Mag Total Intensity Obs nT: 31771
Alt Barometric Ft: 1200
Min/Max Data Record:
Longitude: -134.7068
Latitude: 61.2405
Mag Total Intensity Calc nT: 56732
Time Gmt Sec: 44103.0669
Mag East Component Obs nT: 20972
Mag North Component Obs nT: 7721
Mag Horizontal Intensity Calc nT: 21460
Mag Vertical Intensity Obs nT: 54544
Mag Declination Calc Deg: 27.4604
Mag Inclination Calc Deg: 74.1858
Mag Total Intensity Obs nT: 57340
Alt Barometric Ft: 33100