Survey Identifier: NAV4115
Format Acronym: ARO88
Data Center File Number: 0480-295
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 C32-853, Flight 4115 ~ 2,466 Nautical Miles
Survey Departure Date (yyyymmdd): 19880616
Survey Arrival Date (yyyymmdd): 19880616
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: 12406
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -13
Bottommost Latitude: -27
Leftmost Longitude: -149
Rightmost Longitude: -110
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: 12408
Datafile Header Info: PJCT=C32-853 FLGT= 4115 ,MTH= 06,DAY= 16, YR=1988,JDY= 168 -TO- 168,RCD= 12410,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -148.2686
Latitude: -26.7835
Mag Total Intensity Calc nT: 32216
Time Gmt Sec: 26114.6089
Mag East Component Obs nT: 26209
Mag North Component Obs nT: 5669
Mag Horizontal Intensity Calc nT: 27127
Mag Vertical Intensity Obs nT: -19736
Mag Declination Calc Deg: 10.7632
Mag Inclination Calc Deg: -36.0366
Mag Total Intensity Obs nT: 32200
Alt Barometric Ft: 900
Min/Max Data Record:
Longitude: -110.0713
Latitude: -13.9969
Mag Total Intensity Calc nT: 36737
Time Gmt Sec: 51405.0156
Mag East Component Obs nT: 30971
Mag North Component Obs nT: 7049
Mag Horizontal Intensity Calc nT: 31692
Mag Vertical Intensity Obs nT: -10842
Mag Declination Calc Deg: 15.0276
Mag Inclination Calc Deg: -19.6578
Mag Total Intensity Obs nT: 36739
Alt Barometric Ft: 27100