Survey Identifier: NAV1190
Format Acronym: ARO88
Data Center File Number: 0550-007
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 1190 ~ 3,859 Nautical Miles
Survey Departure Date (yyyymmdd): 19890816
Survey Arrival Date (yyyymmdd): 19890817
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: 20477
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +71
Bottommost Latitude: +39
Leftmost Longitude: -023
Rightmost Longitude: +005
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: 20477
Datafile Header Info: PJCT=C32-954 FLGT= 1190 ,MTH= 8,DAY= 15, YR=1989,JDY= 227 -TO- 228,RCD= 20479,NAV=I1 ,CMP=I1
Min/Max Data Record:
Longitude: -22.6042
Latitude: 39.7662
Mag Total Intensity Calc nT: 44039
Time Gmt Sec: 9675.8398
Mag East Component Obs nT: 9788
Mag North Component Obs nT: -4928
Mag Horizontal Intensity Calc nT: 10444
Mag Vertical Intensity Obs nT: 36378
Mag Declination Calc Deg: -23.9855
Mag Inclination Calc Deg: 55.6514
Mag Total Intensity Obs nT: 43965
Alt Barometric Ft: 100
Min/Max Data Record:
Longitude: 4.3183
Latitude: 70.0117
Mag Total Intensity Calc nT: 52965
Time Gmt Sec: 83792.7148
Mag East Component Obs nT: 24588
Mag North Component Obs nT: -1236
Mag Horizontal Intensity Calc nT: 24860
Mag Vertical Intensity Obs nT: 51597
Mag Declination Calc Deg: -3.8197
Mag Inclination Calc Deg: 78.4961
Mag Total Intensity Obs nT: 52970
Alt Barometric Ft: 26000