Survey Identifier: NAV1189
Format Acronym: ARO88
Data Center File Number: 0550-006
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 1189 ~ 3,913 Nautical Miles
Survey Departure Date (yyyymmdd): 19890811
Survey Arrival Date (yyyymmdd): 19890812
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: 18417
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +71
Bottommost Latitude: +54
Leftmost Longitude: -045
Rightmost Longitude: +006
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: 18417
Datafile Header Info: PJCT=C32-954 FLGT= 1189 ,MTH= 8,DAY= 11, YR=1989,JDY= 223 -TO- 224,RCD= 18419,NAV=I1 ,CMP=I1
Min/Max Data Record:
Longitude: -45.0344
Latitude: 54.9310
Mag Total Intensity Calc nT: 48943
Time Gmt Sec: 0.0420
Mag East Component Obs nT: 9310
Mag North Component Obs nT: -7220
Mag Horizontal Intensity Calc nT: 10251
Mag Vertical Intensity Obs nT: 45763
Mag Declination Calc Deg: -30.7145
Mag Inclination Calc Deg: 69.2176
Mag Total Intensity Obs nT: 48938
Alt Barometric Ft: 600
Min/Max Data Record:
Longitude: 5.6957
Latitude: 70.1909
Mag Total Intensity Calc nT: 53922
Time Gmt Sec: 86398.0420
Mag East Component Obs nT: 17117
Mag North Component Obs nT: -761
Mag Horizontal Intensity Calc nT: 17395
Mag Vertical Intensity Obs nT: 52427
Mag Declination Calc Deg: -2.8680
Mag Inclination Calc Deg: 78.8062
Mag Total Intensity Obs nT: 53910
Alt Barometric Ft: 27000