Survey Identifier: NAV2064


Format Acronym: ARO88
Data Center File Number: 0560-017
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: Donald R. Wilson
Project: Project Magnet: Project D32-353: Flight 2064 ~ 3,461 Nautical Miles
Survey Departure Date (yyyymmdd): 19930606
Survey Arrival Date (yyyymmdd): 19930607
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: 18846
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +02
Bottommost Latitude: -23
Leftmost Longitude: -015
Rightmost Longitude: +018
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: 18846
Datafile Header Info: PJCT=D32-353 FLGT= 2064 ,MTH= 6,DAY= 6, YR=1993,JDY= 157 -TO- 158,RCD= 18848,NAV=GPS ,CMP=RLG

Min/Max Data Record:
Longitude: -14.3381
Latitude: -22.4409
Mag Total Intensity Calc nT: 27620
Time Gmt Sec: 1.5650
Mag East Component Obs nT: 12829
Mag North Component Obs nT: -7304
Mag Horizontal Intensity Calc nT: 13266
Mag Vertical Intensity Obs nT: -26802
Mag Declination Calc Deg: -18.9691
Mag Inclination Calc Deg: -63.4173
Mag Total Intensity Obs nT: -25085
Alt Barometric Ft: 892

Min/Max Data Record:
Longitude: 17.5284
Latitude: 1.0312
Mag Total Intensity Calc nT: 31170
Time Gmt Sec: 86399.5625
Mag East Component Obs nT: 27098
Mag North Component Obs nT: -3293
Mag Horizontal Intensity Calc nT: 27616
Mag Vertical Intensity Obs nT: -12317
Mag Declination Calc Deg: -9.6095
Mag Inclination Calc Deg: -24.0384
Mag Total Intensity Obs nT: 34456
Alt Barometric Ft: 25288