Survey Identifier: NAV4126
Format Acronym: ARO88
Data Center File Number: 0550-037
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 C32-951: Flight 4126 ~ 4,021 Nautical Miles
Survey Departure Date (yyyymmdd): 19881029
Survey Arrival Date (yyyymmdd): 19881029
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: 21148
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +21
Bottommost Latitude: -28
Leftmost Longitude: -158
Rightmost Longitude: -109
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: 21148
Datafile Header Info: PJCT=C32-951 FLGT= 4126 ,MTH= 10,DAY= 29, YR=1988,JDY= 303 -TO- 303,RCD= 21150,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -157.9640
Latitude: -27.2580
Mag Total Intensity Calc nT: 31512
Time Gmt Sec: 16732.7908
Mag East Component Obs nT: 25080
Mag North Component Obs nT: 4812
Mag Horizontal Intensity Calc nT: 26106
Mag Vertical Intensity Obs nT: -20692
Mag Declination Calc Deg: 8.7985
Mag Inclination Calc Deg: -38.2574
Mag Total Intensity Obs nT: 31513
Alt Barometric Ft: 1800
Min/Max Data Record:
Longitude: -109.3292
Latitude: 20.9838
Mag Total Intensity Calc nT: 35835
Time Gmt Sec: 60938.4009
Mag East Component Obs nT: 31392
Mag North Component Obs nT: 7970
Mag Horizontal Intensity Calc nT: 31789
Mag Vertical Intensity Obs nT: 22165
Mag Declination Calc Deg: 17.0884
Mag Inclination Calc Deg: 38.2226
Mag Total Intensity Obs nT: 36034
Alt Barometric Ft: 31100