Survey Identifier: NAV1143


Format Acronym: ARO88
Data Center File Number: 0480-198
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 C32-651, Flight 1143 ~ 3,613 Nautical Miles
Survey Departure Date (yyyymmdd): 19851008
Survey Arrival Date (yyyymmdd): 19851008
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: 19846
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +39
Bottommost Latitude: -12
Leftmost Longitude: -086
Rightmost Longitude: -069
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: 19847
Datafile Header Info: PJCT=C32-651 FLGT= 1143 ,MTH= 10,DAY= 8, YR=1985,JDY= 281 -TO- 281,RCD= 19848,NAV=ESG ,CMP=ESG

Min/Max Data Record:
Longitude: -85.0218
Latitude: -11.8292
Mag Total Intensity Calc nT: 27112
Time Gmt Sec: 754.8720
Mag East Component Obs nT: 20334
Mag North Component Obs nT: -4459
Mag Horizontal Intensity Calc nT: 20627
Mag Vertical Intensity Obs nT: 560
Mag Declination Calc Deg: -10.3936
Mag Inclination Calc Deg: 1.1831
Mag Total Intensity Obs nT: 27058
Alt Barometric Ft: -200

Min/Max Data Record:
Longitude: -69.9411
Latitude: 38.2749
Mag Total Intensity Calc nT: 54500
Time Gmt Sec: 41483.7319
Mag East Component Obs nT: 29329
Mag North Component Obs nT: 2976
Mag Horizontal Intensity Calc nT: 29394
Mag Vertical Intensity Obs nT: 50438
Mag Declination Calc Deg: 5.9637
Mag Inclination Calc Deg: 67.7490
Mag Total Intensity Obs nT: 54240
Alt Barometric Ft: 23900