Survey Identifier: NAV1197
Format Acronym: ARO88
Data Center File Number: 0550-010
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 1197 ~ 3,439 Nautical Miles
Survey Departure Date (yyyymmdd): 19890817
Survey Arrival Date (yyyymmdd): 19890818
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: 19551
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +61
Bottommost Latitude: +47
Leftmost Longitude: -036
Rightmost Longitude: +001
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: 19551
Datafile Header Info: PJCT=C32-954 FLGT= 1197 ,MTH= 8,DAY= 17, YR=1989,JDY= 229 -TO- 230,RCD= 19562,NAV=I1 ,CMP=I1
Min/Max Data Record:
Longitude: -35.0966
Latitude: 47.2853
Mag Total Intensity Calc nT: 47484
Time Gmt Sec: 1.5186
Mag East Component Obs nT: 13001
Mag North Component Obs nT: -6757
Mag Horizontal Intensity Calc nT: 14049
Mag Vertical Intensity Obs nT: 43124
Mag Declination Calc Deg: -24.8340
Mag Inclination Calc Deg: 64.8650
Mag Total Intensity Obs nT: 47515
Alt Barometric Ft: -100
Min/Max Data Record:
Longitude: 0.5610
Latitude: 60.5856
Mag Total Intensity Calc nT: 52311
Time Gmt Sec: 86399.0195
Mag East Component Obs nT: 19723
Mag North Component Obs nT: -1072
Mag Horizontal Intensity Calc nT: 20584
Mag Vertical Intensity Obs nT: 50290
Mag Declination Calc Deg: -3.2987
Mag Inclination Calc Deg: 74.3279
Mag Total Intensity Obs nT: 52310
Alt Barometric Ft: 25600