Survey Identifier: NAV4141


Format Acronym: ARO88
Data Center File Number: 0550-050
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 4141 ~ 2,343 Nautical Miles
Survey Departure Date (yyyymmdd): 19891030
Survey Arrival Date (yyyymmdd): 19891031
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: 14108
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -17
Bottommost Latitude: -28
Leftmost Longitude: -150
Rightmost Longitude: -109
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: 14108
Datafile Header Info: PJCT=C32-051 FLGT= 4141 ,MTH= 10,DAY= 30, YR=1989,JDY= 303 -TO- 303,RCD= 14110,NAV=ESG ,CMP=ESG

Min/Max Data Record:
Longitude: -149.7904
Latitude: -27.2715
Mag Total Intensity Calc nT: 33043
Time Gmt Sec: 0.7354
Mag East Component Obs nT: 25300
Mag North Component Obs nT: 6222
Mag Horizontal Intensity Calc nT: 26409
Mag Vertical Intensity Obs nT: -21361
Mag Declination Calc Deg: 11.1229
Mag Inclination Calc Deg: -38.6429
Mag Total Intensity Obs nT: 33073
Alt Barometric Ft: -100

Min/Max Data Record:
Longitude: -109.3010
Latitude: -17.5529
Mag Total Intensity Calc nT: 37714
Time Gmt Sec: 86398.7354
Mag East Component Obs nT: 31651
Mag North Component Obs nT: 7892
Mag Horizontal Intensity Calc nT: 32260
Mag Vertical Intensity Obs nT: -18162
Mag Declination Calc Deg: 17.0342
Mag Inclination Calc Deg: -29.5981
Mag Total Intensity Obs nT: 37730
Alt Barometric Ft: 28100