Survey Identifier: NAV3108
Format Acronym: ARO88
Data Center File Number: 0480-175
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 C32-553, Flight 3108 ~ 4,042 Nautical Miles
Survey Departure Date (yyyymmdd): 19850430
Survey Arrival Date (yyyymmdd): 19850430
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: 22636
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +40
Bottommost Latitude: +21
Leftmost Longitude: -159
Rightmost Longitude: -139
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: 22636
Datafile Header Info: PJCT=C32-553 FLGT= 3108 ,MTH= 4,DAY= 30, YR=1985,JDY= 120 -TO- 120,RCD= 22638,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -158.1402
Latitude: 21.0483
Mag Total Intensity Calc nT: 0
Time Gmt Sec: 24471.4578
Mag East Component Obs nT: 0
Mag North Component Obs nT: 0
Mag Horizontal Intensity Calc nT: 0
Mag Vertical Intensity Obs nT: 0
Mag Declination Calc Deg: 0.0000
Mag Inclination Calc Deg: 0.0000
Mag Total Intensity Obs nT: 35398
Alt Barometric Ft: 0
Min/Max Data Record:
Longitude: -139.7610
Latitude: 39.3150
Mag Total Intensity Calc nT: 47198
Time Gmt Sec: 69959.5352
Mag East Component Obs nT: 27605
Mag North Component Obs nT: 7400
Mag Horizontal Intensity Calc nT: 28141
Mag Vertical Intensity Obs nT: 40516
Mag Declination Calc Deg: 17.8006
Mag Inclination Calc Deg: 59.1530
Mag Total Intensity Obs nT: 47184
Alt Barometric Ft: 27100