Survey Identifier: NAV3159
Format Acronym: ARO88
Data Center File Number: 0480-287
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 C32-851, Flight 3159 ~ 2,934 Nautical Miles
Survey Departure Date (yyyymmdd): 19870201
Survey Arrival Date (yyyymmdd): 19870201
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: 15733
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +35
Bottommost Latitude: +12
Leftmost Longitude: +122
Rightmost Longitude: +129
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: 15735
Datafile Header Info: PJCT=C32-851 FLGT= 3159 ,MTH= 11,DAY= 27, YR=1987,JDY= 331 -TO- 331,RCD= 15736,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: 122.7748
Latitude: 12.9842
Mag Total Intensity Calc nT: 39110
Time Gmt Sec: 41304.8159
Mag East Component Obs nT: 31475
Mag North Component Obs nT: -4801
Mag Horizontal Intensity Calc nT: 31642
Mag Vertical Intensity Obs nT: -83333
Mag Declination Calc Deg: -8.2078
Mag Inclination Calc Deg: -67.0859
Mag Total Intensity Obs nT: 39126
Alt Barometric Ft: 0
Min/Max Data Record:
Longitude: 128.1574
Latitude: 34.5134
Mag Total Intensity Calc nT: 90473
Time Gmt Sec: 73511.8076
Mag East Component Obs nT: 38871
Mag North Component Obs nT: 4084
Mag Horizontal Intensity Calc nT: 38874
Mag Vertical Intensity Obs nT: 38181
Mag Declination Calc Deg: 7.0010
Mag Inclination Calc Deg: 50.2025
Mag Total Intensity Obs nT: 49687
Alt Barometric Ft: 29100