Survey Identifier: NAV3131
Format Acronym: ARO88
Data Center File Number: 0440-042
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 C32-751, Flight 3131 ~ 3,331 Nautical Miles
Survey Departure Date (yyyymmdd): 19861125
Survey Arrival Date (yyyymmdd): 19861125
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: 16843
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +11
Bottommost Latitude: -15
Leftmost Longitude: +177
Rightmost Longitude: -169
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: 16844
Datafile Header Info: PJCT=C32-751 FLGT= 3131 ,MTH= 11,DAY= 25, YR=1986,JDY= 329 -TO- 329,RCD= 16845,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -180.0000
Latitude: -14.6091
Mag Total Intensity Calc nT: 32897
Time Gmt Sec: 33808.3608
Mag East Component Obs nT: 30706
Mag North Component Obs nT: 5485
Mag Horizontal Intensity Calc nT: 31201
Mag Vertical Intensity Obs nT: -21218
Mag Declination Calc Deg: 10.0635
Mag Inclination Calc Deg: -31.5226
Mag Total Intensity Obs nT: 32912
Alt Barometric Ft: 12100
Min/Max Data Record:
Longitude: 179.9996
Latitude: 10.0798
Mag Total Intensity Calc nT: 40583
Time Gmt Sec: 69268.2646
Mag East Component Obs nT: 34574
Mag North Component Obs nT: 7263
Mag Horizontal Intensity Calc nT: 35238
Mag Vertical Intensity Obs nT: 10903
Mag Declination Calc Deg: 12.0982
Mag Inclination Calc Deg: 19.2511
Mag Total Intensity Obs nT: 41329
Alt Barometric Ft: 29100