Survey Identifier: NAV5091B


Format Acronym: ARO88
Data Center File Number: 0550-066
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 C32-051: Flight 5091 ~ 3,738 Nautical Miles
Survey Departure Date (yyyymmdd): 19891128
Survey Arrival Date (yyyymmdd): 19891129
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: 20701
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +01
Bottommost Latitude: -21
Leftmost Longitude: +044
Rightmost Longitude: +061
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: 20701
Datafile Header Info: PJCT=C32-051 FLGT= 5091 ,MTH= 11,DAY= 28, YR=1989,JDY= 332 -TO- 332,RCD= 20703,NAV=ESG ,CMP=ESG

Min/Max Data Record:
Longitude: 44.7130
Latitude: -20.8996
Mag Total Intensity Calc nT: 33903
Time Gmt Sec: 1.6105
Mag East Component Obs nT: 18229
Mag North Component Obs nT: -7220
Mag Horizontal Intensity Calc nT: 19606
Mag Vertical Intensity Obs nT: -31050
Mag Declination Calc Deg: -21.6060
Mag Inclination Calc Deg: -57.7298
Mag Total Intensity Obs nT: 33879
Alt Barometric Ft: 0

Min/Max Data Record:
Longitude: 60.0873
Latitude: 0.2858
Mag Total Intensity Calc nT: 36722
Time Gmt Sec: 86399.6104
Mag East Component Obs nT: 34268
Mag North Component Obs nT: -507
Mag Horizontal Intensity Calc nT: 34359
Mag Vertical Intensity Obs nT: -11208
Mag Declination Calc Deg: -0.9035
Mag Inclination Calc Deg: -18.3852
Mag Total Intensity Obs nT: 36317
Alt Barometric Ft: 26500