Survey Identifier: NAV2011


Format Acronym: ARO88
Data Center File Number: 0480-018
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 C32-252: Flight 2011 ~ 3,679 Nautical Miles
Survey Departure Date (yyyymmdd): 19820315
Survey Arrival Date (yyyymmdd): 19820316
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: 18142
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +06
Bottommost Latitude: -27
Leftmost Longitude: -003
Rightmost Longitude: +008
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: 18144
Datafile Header Info: PJCT=C32-252 FLGT= 2011 ,MTH= 3,DAY= 15, YR=1982,JDY= 74 -TO- 74,RCD= 18145,NAV=ESG ,CMP=INS2

Min/Max Data Record:
Longitude: -2.9234
Latitude: -26.0247
Mag Total Intensity Calc nT: 28451
Time Gmt Sec: 0.0137
Mag East Component Obs nT: 11934
Mag North Component Obs nT: -5912
Mag Horizontal Intensity Calc nT: 12924
Mag Vertical Intensity Obs nT: -26235
Mag Declination Calc Deg: -24.3300
Mag Inclination Calc Deg: -63.6355
Mag Total Intensity Obs nT: 28453
Alt Barometric Ft: 13471

Min/Max Data Record:
Longitude: 7.0370
Latitude: 5.8337
Mag Total Intensity Calc nT: 32296
Time Gmt Sec: 86398.5137
Mag East Component Obs nT: 31289
Mag North Component Obs nT: -3531
Mag Horizontal Intensity Calc nT: 31489
Mag Vertical Intensity Obs nT: -7149
Mag Declination Calc Deg: -6.4497
Mag Inclination Calc Deg: -12.7912
Mag Total Intensity Obs nT: 30656
Alt Barometric Ft: 28000