Survey Identifier: NAV2050
Format Acronym: ARO88
Data Center File Number: 0480-313
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 2050 ~ 3,655 Nautical Miles
Survey Departure Date (yyyymmdd): 19880420
Survey Arrival Date (yyyymmdd): 19880421
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: 20764
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +05
Bottommost Latitude: -09
Leftmost Longitude: -015
Rightmost Longitude: +037
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: 20764
Datafile Header Info: PJCT=C32-853 FLGT= 2050 ,MTH= 4,DAY= 20, YR=1988,JDY= 111 -TO- 112
Min/Max Data Record:
Longitude: -14.4060
Latitude: -8.0069
Mag Total Intensity Calc nT: 26134
Time Gmt Sec: 2.1445
Mag East Component Obs nT: 19058
Mag North Component Obs nT: -7813
Mag Horizontal Intensity Calc nT: 20155
Mag Vertical Intensity Obs nT: -20957
Mag Declination Calc Deg: -20.9347
Mag Inclination Calc Deg: -41.3442
Mag Total Intensity Obs nT: 27583
Alt Barometric Ft: 200
Min/Max Data Record:
Longitude: 36.9747
Latitude: 4.6938
Mag Total Intensity Calc nT: 34392
Time Gmt Sec: 86399.6465
Mag East Component Obs nT: 33434
Mag North Component Obs nT: 327
Mag Horizontal Intensity Calc nT: 33434
Mag Vertical Intensity Obs nT: -7519
Mag Declination Calc Deg: 0.6218
Mag Inclination Calc Deg: -12.6896
Mag Total Intensity Obs nT: 34248
Alt Barometric Ft: 25100