Survey Identifier: NAV2049
Format Acronym: ARO88
Data Center File Number: 0480-312
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 C32-853, Flight 2049 ~ 3,445 Nautical Miles
Survey Departure Date (yyyymmdd): 19890417
Survey Arrival Date (yyyymmdd): 19890418
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: 20038
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +14
Bottommost Latitude: -09
Leftmost Longitude: -060
Rightmost Longitude: -014
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: 20039
Datafile Header Info: PJCT=C32-853 FLGT= 2049 ,MTH= 4,DAY= 17, YR=1988,JDY= 108 -TO- 109
Min/Max Data Record:
Longitude: -59.5096
Latitude: -8.2247
Mag Total Intensity Calc nT: 25641
Time Gmt Sec: 1.6738
Mag East Component Obs nT: 19880
Mag North Component Obs nT: -9906
Mag Horizontal Intensity Calc nT: 20914
Mag Vertical Intensity Obs nT: -17510
Mag Declination Calc Deg: -20.5786
Mag Inclination Calc Deg: -39.9380
Mag Total Intensity Obs nT: 27479
Alt Barometric Ft: 100
Min/Max Data Record:
Longitude: -14.0452
Latitude: 13.0828
Mag Total Intensity Calc nT: 36416
Time Gmt Sec: 86399.1748
Mag East Component Obs nT: 27472
Mag North Component Obs nT: -5956
Mag Horizontal Intensity Calc nT: 28781
Mag Vertical Intensity Obs nT: 23089
Mag Declination Calc Deg: -12.8802
Mag Inclination Calc Deg: 39.5823
Mag Total Intensity Obs nT: 36054
Alt Barometric Ft: 23100