Survey Identifier: NAV2052
Format Acronym: ARO88
Data Center File Number: 0550-017
Parameters Surveyed Code: FXD
File Creation Date (yyyymmdd): 19940506
Source Institution: US Naval Oceanographic Office
Country: INTERNATIONAL
Platform Name: RP-3D ORION
Platform Type Code: 3
Platform Type: PLANE
Chief Scientists: Virgil R. Bettencourt
Project: Project Magnet: Project C32-954: Flight 2052 ~ 2,947 Nautical Miles
Survey Departure Date (yyyymmdd): 19890904
Survey Arrival Date (yyyymmdd): 19890904
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: 16573
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -07
Bottommost Latitude: -35
Leftmost Longitude: -057
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: 16573
Datafile Header Info: PJCT=C32-954 FLGT= 2052 ,MTH= 9,DAY= 4, YR=1989,JDY= 247 -TO- 247,RCD= 16575,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -56.0924
Latitude: -34.9619
Mag Total Intensity Calc nT: 23583
Time Gmt Sec: 9687.2849
Mag East Component Obs nT: 15207
Mag North Component Obs nT: -7718
Mag Horizontal Intensity Calc nT: 16661
Mag Vertical Intensity Obs nT: -18268
Mag Declination Calc Deg: -25.4544
Mag Inclination Calc Deg: -46.9264
Mag Total Intensity Obs nT: 23588
Alt Barometric Ft: 100
Min/Max Data Record:
Longitude: -14.3137
Latitude: -7.9662
Mag Total Intensity Calc nT: 28818
Time Gmt Sec: 43468.3096
Mag East Component Obs nT: 21888
Mag North Component Obs nT: -2227
Mag Horizontal Intensity Calc nT: 22991
Mag Vertical Intensity Obs nT: -14051
Mag Declination Calc Deg: -6.6441
Mag Inclination Calc Deg: -35.6615
Mag Total Intensity Obs nT: 28826
Alt Barometric Ft: 24200