Survey Identifier: NAV4033
Format Acronym: ARO88
Data Center File Number: 0480-050
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 C32-351: Flight 4033 ~2,911 Nautical Miles
Survey Departure Date (yyyymmdd): 19821110
Survey Arrival Date (yyyymmdd): 19821110
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: 15772
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -13
Bottommost Latitude: -32
Leftmost Longitude: +152
Rightmost Longitude: -170
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: 15774
Datafile Header Info: PJCT=C32-351 FLGT= 4033 ,MTH= 11,DAY= 10, YR=1982,JDY= 314 -TO- 314,RCD= 15775,NAV=INS1,CMP=INS2
Min/Max Data Record:
Longitude: -179.9930
Latitude: -31.2554
Mag Total Intensity Calc nT: 39267
Time Gmt Sec: 33280.6118
Mag East Component Obs nT: 25822
Mag North Component Obs nT: 5307
Mag Horizontal Intensity Calc nT: 26365
Mag Vertical Intensity Obs nT: -49501
Mag Declination Calc Deg: 9.5845
Mag Inclination Calc Deg: -61.9579
Mag Total Intensity Obs nT: 39294
Alt Barometric Ft: 6010
Min/Max Data Record:
Longitude: 180.0006
Latitude: -13.8846
Mag Total Intensity Calc nT: 56090
Time Gmt Sec: 68228.6113
Mag East Component Obs nT: 34088
Mag North Component Obs nT: 7508
Mag Horizontal Intensity Calc nT: 34626
Mag Vertical Intensity Obs nT: -19302
Mag Declination Calc Deg: 12.7010
Mag Inclination Calc Deg: -29.3303
Mag Total Intensity Obs nT: 56071
Alt Barometric Ft: 26000