Survey Identifier: NAV3122


Format Acronym: ARO88
Data Center File Number: 0480-174
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 C32-553, Flight 3122 ~ 3,844 Nautical Miles
Survey Departure Date (yyyymmdd): 19850623
Survey Arrival Date (yyyymmdd): 19850623
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: 19390
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +66
Bottommost Latitude: +30
Leftmost Longitude: -150
Rightmost Longitude: -079
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: 19390
Datafile Header Info: PJCT=C32-553 FLGT= 3122 ,MTH= 6,DAY= 23, YR=1985,JDY= 174 -TO- 174,RCD= 19392,NAV=ESG ,CMP=INS2

Min/Max Data Record:
Longitude: -149.8797
Latitude: 30.4095
Mag Total Intensity Calc nT: 50813
Time Gmt Sec: 7442.7820
Mag East Component Obs nT: 4794
Mag North Component Obs nT: -3400
Mag Horizontal Intensity Calc nT: 4841
Mag Vertical Intensity Obs nT: 44475
Mag Declination Calc Deg: -26.4004
Mag Inclination Calc Deg: 61.0266
Mag Total Intensity Obs nT: 50818
Alt Barometric Ft: 328

Min/Max Data Record:
Longitude: -79.4190
Latitude: 65.2458
Mag Total Intensity Calc nT: 61065
Time Gmt Sec: 46296.0986
Mag East Component Obs nT: 24635
Mag North Component Obs nT: 6657
Mag Horizontal Intensity Calc nT: 24646
Mag Vertical Intensity Obs nT: 60833
Mag Declination Calc Deg: 35.7450
Mag Inclination Calc Deg: 85.4208
Mag Total Intensity Obs nT: 61055
Alt Barometric Ft: 32000