Survey Identifier: NAV1170
Format Acronym: ARO88
Data Center File Number: 0480-379
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 C32-854, Flight 1170 ~ 2,061 Nautical Miles
Survey Departure Date (yyyymmdd): 19880716
Survey Arrival Date (yyyymmdd): 19880716
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: 10774
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +40
Bottommost Latitude: +36
Leftmost Longitude: -123
Rightmost Longitude: -076
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: 10774
Datafile Header Info: PJCT=C32-854 FLGT= 1170 ,MTH= 7,DAY= 16, YR=1988,JDY= 198 -TO- 198
Min/Max Data Record:
Longitude: -122.0635
Latitude: 36.9492
Mag Total Intensity Calc nT: 49423
Time Gmt Sec: 57801.2056
Mag East Component Obs nT: 19717
Mag North Component Obs nT: -3652
Mag Horizontal Intensity Calc nT: 19797
Mag Vertical Intensity Obs nT: 43233
Mag Declination Calc Deg: -10.3126
Mag Inclination Calc Deg: 60.9058
Mag Total Intensity Obs nT: 8296
Alt Barometric Ft: -200
Min/Max Data Record:
Longitude: -76.4034
Latitude: 39.3889
Mag Total Intensity Calc nT: 55667
Time Gmt Sec: 81708.8057
Mag East Component Obs nT: 23584
Mag North Component Obs nT: 6694
Mag Horizontal Intensity Calc nT: 24512
Mag Vertical Intensity Obs nT: 51799
Mag Declination Calc Deg: 15.9915
Mag Inclination Calc Deg: 68.8860
Mag Total Intensity Obs nT: 63803
Alt Barometric Ft: 31200