Survey Identifier: NAV3109


Format Acronym: ARO88
Data Center File Number: 0480-177
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 3109 ~ 4,032 Nautical Miles
Survey Departure Date (yyyymmdd): 19850503
Survey Arrival Date (yyyymmdd): 19850503
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: 21232
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +30
Bottommost Latitude: +21
Leftmost Longitude: +169
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: 21232
Datafile Header Info: PJCT=C32-553 FLGT= 3109 ,MTH= 5,DAY= 3, YR=1985,JDY= 123 -TO- 123,RCD= 21234,NAV=ESG ,CMP=ESG

Min/Max Data Record:
Longitude: -180.0000
Latitude: 21.1601
Mag Total Intensity Calc nT: 34836
Time Gmt Sec: 24060.8889
Mag East Component Obs nT: 25594
Mag North Component Obs nT: 2699
Mag Horizontal Intensity Calc nT: 26114
Mag Vertical Intensity Obs nT: 19230
Mag Declination Calc Deg: 5.5290
Mag Inclination Calc Deg: 33.3295
Mag Total Intensity Obs nT: 0
Alt Barometric Ft: 0

Min/Max Data Record:
Longitude: 179.9995
Latitude: 29.5881
Mag Total Intensity Calc nT: 37596
Time Gmt Sec: 66581.1172
Mag East Component Obs nT: 29039
Mag North Component Obs nT: 5727
Mag Horizontal Intensity Calc nT: 29248
Mag Vertical Intensity Obs nT: 27016
Mag Declination Calc Deg: 11.8842
Mag Inclination Calc Deg: 45.9380
Mag Total Intensity Obs nT: 37591
Alt Barometric Ft: 27000