Survey Identifier: NAV1186


Format Acronym: ARO88
Data Center File Number: 0550-004
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 1186 ~ 3,073 Nautical Miles
Survey Departure Date (yyyymmdd): 19890731
Survey Arrival Date (yyyymmdd): 19890731
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: 17205
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +78
Bottommost Latitude: +55
Leftmost Longitude: -010
Rightmost Longitude: +002
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: 17205
Datafile Header Info: PJCT=C32-954 FLGT= 1186 ,MTH= 7,DAY= 31, YR=1989,JDY= 212 -TO- 213,RCD= 17207,NAV=I1 ,CMP=I1

Min/Max Data Record:
Longitude: -9.7853
Latitude: 55.5108
Mag Total Intensity Calc nT: 48048
Time Gmt Sec: 1.6396
Mag East Component Obs nT: 7609
Mag North Component Obs nT: -3117
Mag Horizontal Intensity Calc nT: 7965
Mag Vertical Intensity Obs nT: 45170
Mag Declination Calc Deg: -20.2906
Mag Inclination Calc Deg: 69.1419
Mag Total Intensity Obs nT: 49098
Alt Barometric Ft: 0

Min/Max Data Record:
Longitude: 1.3956
Latitude: 77.2676
Mag Total Intensity Calc nT: 53745
Time Gmt Sec: 86399.1406
Mag East Component Obs nT: 17296
Mag North Component Obs nT: -1306
Mag Horizontal Intensity Calc nT: 17466
Mag Vertical Intensity Obs nT: 53123
Mag Declination Calc Deg: -5.6031
Mag Inclination Calc Deg: 81.4632
Mag Total Intensity Obs nT: 53759
Alt Barometric Ft: 29000