Survey Identifier: NAV4079
Format Acronym: ARO88
Data Center File Number: 0480-209
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 4079 ~ 3,925 Nautical Miles
Survey Departure Date (yyyymmdd): 19851127
Survey Arrival Date (yyyymmdd): 19851127
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: 21073
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -43
Bottommost Latitude: -62
Leftmost Longitude: +172
Rightmost Longitude: -144
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: 21074
Datafile Header Info: PJCT=C32-651 FLGT= 4079 ,MTH= 11,DAY= 27, YR=1985,JDY= 331 -TO- 331,RCD= 21075,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -179.9973
Latitude: -61.9467
Mag Total Intensity Calc nT: 54872
Time Gmt Sec: 24302.0129
Mag East Component Obs nT: 11276
Mag North Component Obs nT: 7927
Mag Horizontal Intensity Calc nT: 15731
Mag Vertical Intensity Obs nT: -58497
Mag Declination Calc Deg: 21.7999
Mag Inclination Calc Deg: -74.8930
Mag Total Intensity Obs nT: 54863
Alt Barometric Ft: 300
Min/Max Data Record:
Longitude: 179.9984
Latitude: -43.3358
Mag Total Intensity Calc nT: 60685
Time Gmt Sec: 67676.2568
Mag East Component Obs nT: 19934
Mag North Component Obs nT: 11385
Mag Horizontal Intensity Calc nT: 21541
Mag Vertical Intensity Obs nT: -50942
Mag Declination Calc Deg: 44.7495
Mag Inclination Calc Deg: -68.1628
Mag Total Intensity Obs nT: 60688
Alt Barometric Ft: 35100