Survey Identifier: NAV1131
Format Acronym: ARO88
Data Center File Number: 0480-146
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 1131 ~ 3,647 Nautical Miles
Survey Departure Date (yyyymmdd): 19850119
Survey Arrival Date (yyyymmdd): 19850120
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: 19111
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +27
Bottommost Latitude: +12
Leftmost Longitude: -041
Rightmost Longitude: -017
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: 19112
Datafile Header Info: PJCT=C32-552 FLGT= 1131 ,MTH= 1,DAY= 19, YR=1985,JDY= 19 -TO- 19,RCD= 19113,NAV=ESG ,CMP=INS2
Min/Max Data Record:
Longitude: -40.2140
Latitude: 12.9804
Mag Total Intensity Calc nT: 31694
Time Gmt Sec: 0.4512
Mag East Component Obs nT: 26721
Mag North Component Obs nT: -9075
Mag Horizontal Intensity Calc nT: 28071
Mag Vertical Intensity Obs nT: 5745
Mag Declination Calc Deg: -18.2308
Mag Inclination Calc Deg: 10.3998
Mag Total Intensity Obs nT: 31787
Alt Barometric Ft: 599
Min/Max Data Record:
Longitude: -17.4729
Latitude: 26.3496
Mag Total Intensity Calc nT: 39407
Time Gmt Sec: 86399.4512
Mag East Component Obs nT: 31318
Mag North Component Obs nT: -5884
Mag Horizontal Intensity Calc nT: 31901
Mag Vertical Intensity Obs nT: 27606
Mag Declination Calc Deg: -10.6553
Mag Inclination Calc Deg: 44.5110
Mag Total Intensity Obs nT: 39380
Alt Barometric Ft: 29000