Survey Identifier: NAV5057
Format Acronym: ARO88
Data Center File Number: 0440-022
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 5057 ~ 3,416 Nautical Miles
Survey Departure Date (yyyymmdd): 19860211
Survey Arrival Date (yyyymmdd): 19860212
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: 17335
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -04
Bottommost Latitude: -22
Leftmost Longitude: +054
Rightmost Longitude: +087
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: 17337
Datafile Header Info: PJCT=C32-652 FLGT= 5057 ,MTH= 2,DAY= 11, YR=1986,JDY= 42 -TO- 42,RCD= 17339,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: 54.6587
Latitude: -21.1340
Mag Total Intensity Calc nT: 34936
Time Gmt Sec: 0.8135
Mag East Component Obs nT: 18527
Mag North Component Obs nT: -7087
Mag Horizontal Intensity Calc nT: 19501
Mag Vertical Intensity Obs nT: -34906
Mag Declination Calc Deg: -19.6550
Mag Inclination Calc Deg: -56.5123
Mag Total Intensity Obs nT: 34899
Alt Barometric Ft: 300
Min/Max Data Record:
Longitude: 86.6079
Latitude: -4.9966
Mag Total Intensity Calc nT: 46133
Time Gmt Sec: 86398.8135
Mag East Component Obs nT: 35804
Mag North Component Obs nT: -3087
Mag Horizontal Intensity Calc nT: 35942
Mag Vertical Intensity Obs nT: -22266
Mag Declination Calc Deg: -4.9501
Mag Inclination Calc Deg: -31.7793
Mag Total Intensity Obs nT: 46129
Alt Barometric Ft: 31000