Survey Identifier: NAV3115


Format Acronym: ARO88
Data Center File Number: 0480-170
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 3115 ~ 3,053 Nautical Miles
Survey Departure Date (yyyymmdd): 19850531
Survey Arrival Date (yyyymmdd): 19850531
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: 15841
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +46
Bottommost Latitude: +33
Leftmost Longitude: +128
Rightmost Longitude: +159
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: 15842
Datafile Header Info: PJCT=C32-553 FLGT= 3115 ,MTH= 5,DAY= 31, YR=1985,JDY= 151 -TO- 151,RCD= 15844,NAV=ESG ,CMP=INS2

Min/Max Data Record:
Longitude: 128.9049
Latitude: 33.8167
Mag Total Intensity Calc nT: 40889
Time Gmt Sec: 42070.3789
Mag East Component Obs nT: 25307
Mag North Component Obs nT: -4190
Mag Horizontal Intensity Calc nT: 25360
Mag Vertical Intensity Obs nT: 29166
Mag Declination Calc Deg: -8.8430
Mag Inclination Calc Deg: 45.4968
Mag Total Intensity Obs nT: 40902
Alt Barometric Ft: 843

Min/Max Data Record:
Longitude: 158.0738
Latitude: 45.0475
Mag Total Intensity Calc nT: 49334
Time Gmt Sec: 75854.8926
Mag East Component Obs nT: 31631
Mag North Component Obs nT: -225
Mag Horizontal Intensity Calc nT: 31816
Mag Vertical Intensity Obs nT: 40945
Mag Declination Calc Deg: -0.4500
Mag Inclination Calc Deg: 56.8676
Mag Total Intensity Obs nT: 49453
Alt Barometric Ft: 30900