Survey Identifier: NAV4159
Format Acronym: ARO88
Data Center File Number: 0550-058
Parameters Surveyed Code: FXD
File Creation Date (yyyymmdd): 19940506
Source Institution: US Naval Oceanographic Office
Country: INTERNATIONAL
Platform Name: RP-3D ORION
Platform Type Code: 3
Platform Type: PLANE
Chief Scientists: Virgil R. Bettencourt
Project: Project Magnet: Project C32-053: Flight 4159 ~ 1,515 Nautical Miles
Survey Departure Date (yyyymmdd): 19900609
Survey Arrival Date (yyyymmdd): 19900609
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: 7998
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +31
Bottommost Latitude: +08
Leftmost Longitude: -088
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: 7998
Datafile Header Info: PJCT=C32-053 FLGT= 4159 ,MTH= 6,DAY= 9, YR=1990,JDY= 160 -TO- 160,RCD= 8000,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -87.0667
Latitude: 8.9055
Mag Total Intensity Calc nT: 35803
Time Gmt Sec: 41646.4077
Mag East Component Obs nT: 23637
Mag North Component Obs nT: -1502
Mag Horizontal Intensity Calc nT: 23674
Mag Vertical Intensity Obs nT: 21710
Mag Declination Calc Deg: -3.6004
Mag Inclination Calc Deg: 37.2306
Mag Total Intensity Obs nT: 35863
Alt Barometric Ft: 0
Min/Max Data Record:
Longitude: -79.5803
Latitude: 30.2324
Mag Total Intensity Calc nT: 50020
Time Gmt Sec: 57920.7837
Mag East Component Obs nT: 28734
Mag North Component Obs nT: 736
Mag Horizontal Intensity Calc nT: 28734
Mag Vertical Intensity Obs nT: 43978
Mag Declination Calc Deg: 1.5750
Mag Inclination Calc Deg: 61.7057
Mag Total Intensity Obs nT: 49998
Alt Barometric Ft: 26900