Survey Identifier: NAV4132
Format Acronym: ARO88
Data Center File Number: 0550-043
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 4132 ~ 3,246 Nautical Miles
Survey Departure Date (yyyymmdd): 19881126
Survey Arrival Date (yyyymmdd): 19881126
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: 17052
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -17
Bottommost Latitude: -28
Leftmost Longitude: +153
Rightmost Longitude: -149
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: 17052
Datafile Header Info: PJCT=C32-951 FLGT= 4132 ,MTH= 11,DAY= 26, YR=1988,JDY= 331 -TO- 331,RCD= 17054,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -179.9979
Latitude: -27.5478
Mag Total Intensity Calc nT: 36925
Time Gmt Sec: 37786.8086
Mag East Component Obs nT: 27908
Mag North Component Obs nT: 5227
Mag Horizontal Intensity Calc nT: 28427
Mag Vertical Intensity Obs nT: -45600
Mag Declination Calc Deg: 10.5357
Mag Inclination Calc Deg: -57.9256
Mag Total Intensity Obs nT: 37195
Alt Barometric Ft: 0
Min/Max Data Record:
Longitude: 179.9988
Latitude: -17.5816
Mag Total Intensity Calc nT: 53931
Time Gmt Sec: 73328.2539
Mag East Component Obs nT: 31664
Mag North Component Obs nT: 8068
Mag Horizontal Intensity Calc nT: 32402
Mag Vertical Intensity Obs nT: -18352
Mag Declination Calc Deg: 15.2258
Mag Inclination Calc Deg: -29.5300
Mag Total Intensity Obs nT: 53827
Alt Barometric Ft: 25000