Survey Identifier: NAV1195


Format Acronym: ARO88
Data Center File Number: 0550-008
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 C32-954: Flight 1195 ~ 3,866 Nautical Miles
Survey Departure Date (yyyymmdd): 19890924
Survey Arrival Date (yyyymmdd): 19890924
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: 20328
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +14
Bottommost Latitude: -04
Leftmost Longitude: -060
Rightmost Longitude: -003
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: 20328
Datafile Header Info: PJCT=C32-954 FLGT= 1195 ,MTH= 9,DAY= 24, YR=1989,JDY= 267 -TO- 267,RCD= 20330,NAV=ESG ,CMP=ESG

Min/Max Data Record:
Longitude: -59.6344
Latitude: -3.0111
Mag Total Intensity Calc nT: 27189
Time Gmt Sec: 4669.3879
Mag East Component Obs nT: 24117
Mag North Component Obs nT: -9759
Mag Horizontal Intensity Calc nT: 25625
Mag Vertical Intensity Obs nT: -10550
Mag Declination Calc Deg: -21.0349
Mag Inclination Calc Deg: -21.8045
Mag Total Intensity Obs nT: 27196
Alt Barometric Ft: 0

Min/Max Data Record:
Longitude: -3.9273
Latitude: 13.1613
Mag Total Intensity Calc nT: 35900
Time Gmt Sec: 46036.1709
Mag East Component Obs nT: 30067
Mag North Component Obs nT: -4204
Mag Horizontal Intensity Calc nT: 30359
Mag Vertical Intensity Obs nT: 22575
Mag Declination Calc Deg: -7.9606
Mag Inclination Calc Deg: 39.0252
Mag Total Intensity Obs nT: 35927
Alt Barometric Ft: 29000