Survey Identifier: NAV4171
Format Acronym: ARO88
Data Center File Number: 0560-044
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: Donald R. Wilson
Project: Project Magnet: Project D32-451: Flight 4171 ~ 2,782 Nautical Miles
Survey Departure Date (yyyymmdd): 19931112
Survey Arrival Date (yyyymmdd): 19931112
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: 14862
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -17
Bottommost Latitude: -28
Leftmost Longitude: -151
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: 14862
Datafile Header Info: PJCT=D32-451 FLGT= 4171 ,MTH= 11,DAY= 12, YR=1993,JDY= 316 -TO- 316,RCD= 14864,NAV=GPS ,CMP=RLG
Min/Max Data Record:
Longitude: -150.0034
Latitude: -27.1096
Mag Total Intensity Calc nT: 32757
Time Gmt Sec: 24105.6875
Mag East Component Obs nT: 25640
Mag North Component Obs nT: 6389
Mag Horizontal Intensity Calc nT: 26565
Mag Vertical Intensity Obs nT: -26021
Mag Declination Calc Deg: -999.0000
Mag Inclination Calc Deg: -999.0000
Mag Total Intensity Obs nT: 32732
Alt Barometric Ft: 1699
Min/Max Data Record:
Longitude: -109.5393
Latitude: -17.2726
Mag Total Intensity Calc nT: 39816
Time Gmt Sec: 54040.9922
Mag East Component Obs nT: 31424
Mag North Component Obs nT: 7543
Mag Horizontal Intensity Calc nT: 32184
Mag Vertical Intensity Obs nT: -18428
Mag Declination Calc Deg: 15.4916
Mag Inclination Calc Deg: -30.1238
Mag Total Intensity Obs nT: 39816
Alt Barometric Ft: 24964