Survey Identifier: NAV4068


Format Acronym: ARO88
Data Center File Number: 0380-015
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 C32-551, Flight 4068 ~ 3,386 Nautical Miles
Survey Departure Date (yyyymmdd): 19841116
Survey Arrival Date (yyyymmdd): 19841117
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: 17908
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -27
Bottommost Latitude: -43
Leftmost Longitude: -112
Rightmost Longitude: -094
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: 17910
Datafile Header Info: PJCT=C32-551 FLGT= 4068 ,MTH= 11,DAY= 16, YR=1984,JDY= 321 -TO- 321,RCD= 17911,NAV=ESG ,CMP=INS2

Min/Max Data Record:
Longitude: -111.4984
Latitude: -42.8341
Mag Total Intensity Calc nT: 30570
Time Gmt Sec: 0.2813
Mag East Component Obs nT: 21817
Mag North Component Obs nT: 6263
Mag Horizontal Intensity Calc nT: 23689
Mag Vertical Intensity Obs nT: -32885
Mag Declination Calc Deg: 13.4129
Mag Inclination Calc Deg: -53.2034
Mag Total Intensity Obs nT: 30615
Alt Barometric Ft: 11

Min/Max Data Record:
Longitude: -93.9960
Latitude: -27.0790
Mag Total Intensity Calc nT: 41096
Time Gmt Sec: 86398.2832
Mag East Component Obs nT: 26878
Mag North Component Obs nT: 10225
Mag Horizontal Intensity Calc nT: 27902
Mag Vertical Intensity Obs nT: -16982
Mag Declination Calc Deg: 24.7311
Mag Inclination Calc Deg: -33.7459
Mag Total Intensity Obs nT: 41071
Alt Barometric Ft: 26900