Survey Identifier: NAV4083
Format Acronym: ARO88
Data Center File Number: 0480-211
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 4083 ~ 2,998 Nautical Miles
Survey Departure Date (yyyymmdd): 19851209
Survey Arrival Date (yyyymmdd): 19851209
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: 15889
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -17
Bottommost Latitude: -42
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: 15890
Datafile Header Info: PJCT=C32-651 FLGT= 4083 ,MTH= 12,DAY= 9, YR=1985,JDY= 343 -TO- 343,RCD= 15891,NAV=INS2,CMP=INS2
Min/Max Data Record:
Longitude: -149.5906
Latitude: -41.0109
Mag Total Intensity Calc nT: 33544
Time Gmt Sec: 17787.9248
Mag East Component Obs nT: 23463
Mag North Component Obs nT: 6144
Mag Horizontal Intensity Calc nT: 25212
Mag Vertical Intensity Obs nT: -39692
Mag Declination Calc Deg: 11.1794
Mag Inclination Calc Deg: -57.5769
Mag Total Intensity Obs nT: 33588
Alt Barometric Ft: 0
Min/Max Data Record:
Longitude: -109.4921
Latitude: -17.3189
Mag Total Intensity Calc nT: 47054
Time Gmt Sec: 53401.0776
Mag East Component Obs nT: 31760
Mag North Component Obs nT: 9365
Mag Horizontal Intensity Calc nT: 32536
Mag Vertical Intensity Obs nT: -17445
Mag Declination Calc Deg: 21.6675
Mag Inclination Calc Deg: -28.5982
Mag Total Intensity Obs nT: 47073
Alt Barometric Ft: 33100