Survey Identifier: NAV4039


Format Acronym: ARO88
Data Center File Number: 0480-039
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 4039 ~ 3,660 Nautical Miles
Survey Departure Date (yyyymmdd): 19821203
Survey Arrival Date (yyyymmdd): 19821203
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: 18235
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -27
Bottommost Latitude: -43
Leftmost Longitude: +172
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: 18236
Datafile Header Info: PJCT=C32-351 FLGT= 4039 ,MTH= 12,DAY= 3, YR=1982,JDY= 337 -TO- 337,RCD= 18237,NAV=INS1,CMP=INS1

Min/Max Data Record:
Longitude: -173.9357
Latitude: -42.8339
Mag Total Intensity Calc nT: 33610
Time Gmt Sec: 19274.6868
Mag East Component Obs nT: 20027
Mag North Component Obs nT: 6667
Mag Horizontal Intensity Calc nT: 21670
Mag Vertical Intensity Obs nT: -54003
Mag Declination Calc Deg: 14.2700
Mag Inclination Calc Deg: -68.1305
Mag Total Intensity Obs nT: 36096
Alt Barometric Ft: 1916

Min/Max Data Record:
Longitude: 178.4396
Latitude: -27.1239
Mag Total Intensity Calc nT: 58196
Time Gmt Sec: 60107.1865
Mag East Component Obs nT: 26570
Mag North Component Obs nT: 9452
Mag Horizontal Intensity Calc nT: 27445
Mag Vertical Intensity Obs nT: -19902
Mag Declination Calc Deg: 22.4549
Mag Inclination Calc Deg: -36.0240
Mag Total Intensity Obs nT: 58176
Alt Barometric Ft: 29100