Survey Identifier: NAV3147
Format Acronym: ARO88
Data Center File Number: 0480-255
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: Fred M. Valentine
Project: Project Magnet: Project C32-754, Flight 3147 ~ 3,834 Nautical Miles
Survey Departure Date (yyyymmdd): 19870918
Survey Arrival Date (yyyymmdd): 19870918
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: 20044
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +33
Bottommost Latitude: +21
Leftmost Longitude: -159
Rightmost Longitude: -089
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: 20044
Datafile Header Info: PJCT=C32-754 FLGT= 3147 ,MTH= 9,DAY= 18, YR=1987,JDY= 261 -TO- 261,RCD= 20046,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -158.1702
Latitude: 21.0474
Mag Total Intensity Calc nT: 35567
Time Gmt Sec: 16989.1599
Mag East Component Obs nT: 24285
Mag North Component Obs nT: 716
Mag Horizontal Intensity Calc nT: 24214
Mag Vertical Intensity Obs nT: 22235
Mag Declination Calc Deg: 1.3391
Mag Inclination Calc Deg: 38.3584
Mag Total Intensity Obs nT: 35631
Alt Barometric Ft: 0
Min/Max Data Record:
Longitude: -89.0801
Latitude: 32.9713
Mag Total Intensity Calc nT: 50688
Time Gmt Sec: 58097.6050
Mag East Component Obs nT: 27708
Mag North Component Obs nT: 6597
Mag Horizontal Intensity Calc nT: 28195
Mag Vertical Intensity Obs nT: 44453
Mag Declination Calc Deg: 14.3874
Mag Inclination Calc Deg: 61.3287
Mag Total Intensity Obs nT: 50679
Alt Barometric Ft: 27100