Survey Identifier: NAV4040
Format Acronym: ARO88
Data Center File Number: 0480-040
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 4040 ~ 2,657 Nautical Miles
Survey Departure Date (yyyymmdd): 19821205
Survey Arrival Date (yyyymmdd): 19821206
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: 15196
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -17
Bottommost Latitude: -31
Leftmost Longitude: -150
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: 15197
Datafile Header Info: PJCT=C32-351 FLGT= 4040 ,MTH= 12,DAY= 5, YR=1982,JDY= 339 -TO- 339,RCD= 15198,NAV=INS1,CMP=INS2
Min/Max Data Record:
Longitude: -149.9657
Latitude: -30.2750
Mag Total Intensity Calc nT: 33739
Time Gmt Sec: 1.6104
Mag East Component Obs nT: 25483
Mag North Component Obs nT: 6673
Mag Horizontal Intensity Calc nT: 26505
Mag Vertical Intensity Obs nT: -31365
Mag Declination Calc Deg: 12.1236
Mag Inclination Calc Deg: -47.5564
Mag Total Intensity Obs nT: -20220
Alt Barometric Ft: -30285
Min/Max Data Record:
Longitude: -109.4506
Latitude: -17.5892
Mag Total Intensity Calc nT: 42508
Time Gmt Sec: 86372.1104
Mag East Component Obs nT: 31678
Mag North Component Obs nT: 8192
Mag Horizontal Intensity Calc nT: 32452
Mag Vertical Intensity Obs nT: -18504
Mag Declination Calc Deg: 16.5421
Mag Inclination Calc Deg: -29.9174
Mag Total Intensity Obs nT: 42523
Alt Barometric Ft: 30000