Survey Identifier: NAV4059


Format Acronym: ARO88
Data Center File Number: 0380-003
Parameters Surveyed Code: FXD
File Creation Date (yyyymmdd): 19860326
Source Institution: US Naval Oceanographic Office
Country: INTERNATIONAL
Platform Name: RP-3D ORION
Platform Type Code: 3
Platform Type: PLANE
Chief Scientists: Jesus M. Anglero
Project: Project Magnet: Project C32-452, Flight 4059 ~ 3,903 Nautical Miles
Survey Departure Date (yyyymmdd): 19840324
Survey Arrival Date (yyyymmdd): 19840324
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: 20119
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -11
Bottommost Latitude: -21
Leftmost Longitude: -105
Rightmost Longitude: -077
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: 20119
Datafile Header Info: PJCT=C32-452 FLGT= 4059 ,MTH= 3,DAY= 24, YR=1984,JDY= 84 -TO- 84,RCD= 20120,NAV=INS1,CMP=INS1

Min/Max Data Record:
Longitude: -104.7543
Latitude: -20.3436
Mag Total Intensity Calc nT: 26459
Time Gmt Sec: 2867.1580
Mag East Component Obs nT: 25447
Mag North Component Obs nT: 1260
Mag Horizontal Intensity Calc nT: 25647
Mag Vertical Intensity Obs nT: -12966
Mag Declination Calc Deg: 2.6729
Mag Inclination Calc Deg: -24.8986
Mag Total Intensity Obs nT: 24655
Alt Barometric Ft: 2884

Min/Max Data Record:
Longitude: -77.0429
Latitude: -11.9360
Mag Total Intensity Calc nT: 30805
Time Gmt Sec: 43618.1157
Mag East Component Obs nT: 28429
Mag North Component Obs nT: 6047
Mag Horizontal Intensity Calc nT: 28935
Mag Vertical Intensity Obs nT: 852
Mag Declination Calc Deg: 12.5168
Mag Inclination Calc Deg: 1.7950
Mag Total Intensity Obs nT: 30809
Alt Barometric Ft: 26900