Survey Identifier: NAV1109
Format Acronym: ARO88
Data Center File Number: 0480-100
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 C32-453, Flight 1109 ~ 3,935 Nautical Miles
Survey Departure Date (yyyymmdd): 19840516
Survey Arrival Date (yyyymmdd): 19840516
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: 22024
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +50
Bottommost Latitude: +37
Leftmost Longitude: -139
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: 22024
Datafile Header Info: PJCT=C32-453 FLGT= 1109 ,MTH= 5,DAY= 16, YR=1984,JDY= 137 -TO- 137,RCD= 22025,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -138.3217
Latitude: 37.0649
Mag Total Intensity Calc nT: 0
Time Gmt Sec: 14969.6069
Mag East Component Obs nT: 0
Mag North Component Obs nT: -3807
Mag Horizontal Intensity Calc nT: 0
Mag Vertical Intensity Obs nT: 0
Mag Declination Calc Deg: -110.5916
Mag Inclination Calc Deg: -35.3350
Mag Total Intensity Obs nT: 0
Alt Barometric Ft: 406
Min/Max Data Record:
Longitude: -76.4326
Latitude: 49.3285
Mag Total Intensity Calc nT: 59971
Time Gmt Sec: 60465.0879
Mag East Component Obs nT: 23440
Mag North Component Obs nT: 7715
Mag Horizontal Intensity Calc nT: 41859
Mag Vertical Intensity Obs nT: 58036
Mag Declination Calc Deg: 178.8877
Mag Inclination Calc Deg: 76.2294
Mag Total Intensity Obs nT: 59969
Alt Barometric Ft: 25900