Survey Identifier: NAV2033
Format Acronym: ARO88
Data Center File Number: 0480-154
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 2033 ~ 3,645 Nautical Miles
Survey Departure Date (yyyymmdd): 19850215
Survey Arrival Date (yyyymmdd): 19850216
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: 19378
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -30
Bottommost Latitude: -35
Leftmost Longitude: -056
Rightmost Longitude: -021
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: 19379
Datafile Header Info: PJCT=C32-552 FLGT= 2033 ,MTH= 2,DAY= 15, YR=1985,JDY= 46 -TO- 46,RCD= 19380,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -55.9450
Latitude: -34.8097
Mag Total Intensity Calc nT: 23330
Time Gmt Sec: 0.0850
Mag East Component Obs nT: 13456
Mag North Component Obs nT: -6712
Mag Horizontal Intensity Calc nT: 14857
Mag Vertical Intensity Obs nT: -20840
Mag Declination Calc Deg: -25.4168
Mag Inclination Calc Deg: -54.5139
Mag Total Intensity Obs nT: 23329
Alt Barometric Ft: 2878
Min/Max Data Record:
Longitude: -21.9374
Latitude: -30.9904
Mag Total Intensity Calc nT: 25598
Time Gmt Sec: 86398.5869
Mag East Component Obs nT: 19498
Mag North Component Obs nT: -2077
Mag Horizontal Intensity Calc nT: 19610
Mag Vertical Intensity Obs nT: -13759
Mag Declination Calc Deg: -6.0841
Mag Inclination Calc Deg: -35.1987
Mag Total Intensity Obs nT: 25605
Alt Barometric Ft: 24600