Survey Identifier: NAV3140
Format Acronym: ARO88
Data Center File Number: 0440-049
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 3140 ~ 2,384 Nautical Miles
Survey Departure Date (yyyymmdd): 19861209
Survey Arrival Date (yyyymmdd): 19861209
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: 12085
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +21
Bottommost Latitude: -18
Leftmost Longitude: -160
Rightmost Longitude: -149
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: 12085
Datafile Header Info: PJCT=C32-751 FLGT= 3140 ,MTH= 12,DAY= 9, YR=1986,JDY= 343 -TO- 343,RCD= 12086,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -160.0013
Latitude: -17.1690
Mag Total Intensity Calc nT: 32589
Time Gmt Sec: 29311.9109
Mag East Component Obs nT: 27288
Mag North Component Obs nT: 4964
Mag Horizontal Intensity Calc nT: 27815
Mag Vertical Intensity Obs nT: -18278
Mag Declination Calc Deg: 9.1832
Mag Inclination Calc Deg: -29.7357
Mag Total Intensity Obs nT: 32603
Alt Barometric Ft: 9100
Min/Max Data Record:
Longitude: -149.8890
Latitude: 20.4593
Mag Total Intensity Calc nT: 36951
Time Gmt Sec: 54853.4023
Mag East Component Obs nT: 32946
Mag North Component Obs nT: 6996
Mag Horizontal Intensity Calc nT: 33455
Mag Vertical Intensity Obs nT: 21767
Mag Declination Calc Deg: 12.6083
Mag Inclination Calc Deg: 38.0431
Mag Total Intensity Obs nT: 36924
Alt Barometric Ft: 31100