Survey Identifier: NAV5055
Format Acronym: ARO88
Data Center File Number: 0480-204
Parameters Surveyed Code: FXD
File Creation Date (yyyymmdd): 19890906
Source Institution: US Naval Oceanographic Office
Country: INTERNATIONAL
Platform Name: RP-3D ORION
Platform Type Code: 3
Platform Type: PLANE
Chief Scientists: Fred M. Valentine
Project: Project Magnet: Project C32-651, Flight 5055 ~ 3,545 Nautical Miles
Survey Departure Date (yyyymmdd): 19851120
Survey Arrival Date (yyyymmdd): 19851120
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: 21700
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -42
Bottommost Latitude: -66
Leftmost Longitude: +137
Rightmost Longitude: +148
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: 21701
Datafile Header Info: PJCT=C32-651 FLGT= 5055 ,MTH= 11,DAY= 20, YR=1985,JDY= 324 -TO- 324,RCD= 21702,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: 137.8585
Latitude: -65.3350
Mag Total Intensity Calc nT: 62460
Time Gmt Sec: 32260.6938
Mag East Component Obs nT: -150
Mag North Component Obs nT: -337
Mag Horizontal Intensity Calc nT: 20
Mag Vertical Intensity Obs nT: -67087
Mag Declination Calc Deg: -179.8538
Mag Inclination Calc Deg: -89.9829
Mag Total Intensity Obs nT: 62427
Alt Barometric Ft: 2800
Min/Max Data Record:
Longitude: 147.5053
Latitude: -42.7469
Mag Total Intensity Calc nT: 67180
Time Gmt Sec: 76817.7676
Mag East Component Obs nT: 18385
Mag North Component Obs nT: 4683
Mag Horizontal Intensity Calc nT: 18929
Mag Vertical Intensity Obs nT: -59582
Mag Declination Calc Deg: 179.8894
Mag Inclination Calc Deg: -72.3787
Mag Total Intensity Obs nT: 67171
Alt Barometric Ft: 35800