Survey Identifier: NAV5056
Format Acronym: ARO88
Data Center File Number: 0440-021
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: Jesus M. Anglero
Project: Project Magnet: Project C32-652, Flight 5056 ~ 3,933 Nautical Miles
Survey Departure Date (yyyymmdd): 19860222
Survey Arrival Date (yyyymmdd): 19860223
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: 19564
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -20
Bottommost Latitude: -48
Leftmost Longitude: +055
Rightmost Longitude: +078
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: 19565
Datafile Header Info: PJCT=C32-652 FLGT= 5056 ,MTH= 2,DAY= 22, YR=1986,JDY= 53 -TO- 53,RCD= 19567,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: 55.3775
Latitude: -47.0343
Mag Total Intensity Calc nT: 35157
Time Gmt Sec: 1.4434
Mag East Component Obs nT: 11407
Mag North Component Obs nT: -13822
Mag Horizontal Intensity Calc nT: 17893
Mag Vertical Intensity Obs nT: -47421
Mag Declination Calc Deg: -50.4572
Mag Inclination Calc Deg: -69.3015
Mag Total Intensity Obs nT: 35623
Alt Barometric Ft: 157
Min/Max Data Record:
Longitude: 77.9954
Latitude: -20.7281
Mag Total Intensity Calc nT: 50693
Time Gmt Sec: 86398.9443
Mag East Component Obs nT: 20132
Mag North Component Obs nT: -6101
Mag Horizontal Intensity Calc nT: 21323
Mag Vertical Intensity Obs nT: -28362
Mag Declination Calc Deg: -17.0239
Mag Inclination Calc Deg: -53.2423
Mag Total Intensity Obs nT: 50725
Alt Barometric Ft: 31017