Survey Identifier: NAV7011
Format Acronym: ARO88
Data Center File Number: 0480-166
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 C32-552, Flight 7011 ~ 3,900 Nautical Miles
Survey Departure Date (yyyymmdd): 19850312
Survey Arrival Date (yyyymmdd): 19850313
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: 20203
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -36
Bottommost Latitude: -60
Leftmost Longitude: -071
Rightmost Longitude: -024
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: 20205
Datafile Header Info: PJCT=C32-552 FLGT= 7011 ,MTH= 3,DAY= 12, YR=1985,JDY= 71 -TO- 71,RCD= 20206,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -70.9098
Latitude: -59.0052
Mag Total Intensity Calc nT: 24172
Time Gmt Sec: 0.4512
Mag East Component Obs nT: 13998
Mag North Component Obs nT: -4899
Mag Horizontal Intensity Calc nT: 14811
Mag Vertical Intensity Obs nT: -29760
Mag Declination Calc Deg: -19.1757
Mag Inclination Calc Deg: -56.9333
Mag Total Intensity Obs nT: 24183
Alt Barometric Ft: 1000
Min/Max Data Record:
Longitude: -24.9963
Latitude: -36.6038
Mag Total Intensity Calc nT: 37104
Time Gmt Sec: 86398.4521
Mag East Component Obs nT: 21646
Mag North Component Obs nT: 6078
Mag Horizontal Intensity Calc nT: 22476
Mag Vertical Intensity Obs nT: -14897
Mag Declination Calc Deg: 15.8286
Mag Inclination Calc Deg: -38.0450
Mag Total Intensity Obs nT: 37085
Alt Barometric Ft: 29000