Survey Identifier: NAV3116


Format Acronym: ARO88
Data Center File Number: 0480-171
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 3116 ~ 3,912 Nautical Miles
Survey Departure Date (yyyymmdd): 19850603
Survey Arrival Date (yyyymmdd): 19850603
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: 20881
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +36
Bottommost Latitude: +23
Leftmost Longitude: +130
Rightmost Longitude: +158
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: 20881
Datafile Header Info: PJCT=C32-553 FLGT= 3116 ,MTH= 6,DAY= 3, YR=1985,JDY= 154 -TO- 154,RCD= 20883,NAV=ESG ,CMP=INS1

Min/Max Data Record:
Longitude: 130.0254
Latitude: 23.9459
Mag Total Intensity Calc nT: 36383
Time Gmt Sec: 40204.2827
Mag East Component Obs nT: 29955
Mag North Component Obs nT: -3815
Mag Horizontal Intensity Calc nT: 29959
Mag Vertical Intensity Obs nT: 18495
Mag Declination Calc Deg: -7.2067
Mag Inclination Calc Deg: 30.5506
Mag Total Intensity Obs nT: 36370
Alt Barometric Ft: 1425

Min/Max Data Record:
Longitude: 157.0667
Latitude: 35.9351
Mag Total Intensity Calc nT: 46218
Time Gmt Sec: 82895.8379
Mag East Component Obs nT: 35613
Mag North Component Obs nT: 1231
Mag Horizontal Intensity Calc nT: 35668
Mag Vertical Intensity Obs nT: 34872
Mag Declination Calc Deg: 2.2519
Mag Inclination Calc Deg: 49.1637
Mag Total Intensity Obs nT: 46161
Alt Barometric Ft: 31400