Survey Identifier: NAV3119
Format Acronym: ARO88
Data Center File Number: 0480-172
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 3119 ~ 3,714 Nautical Miles
Survey Departure Date (yyyymmdd): 19850618
Survey Arrival Date (yyyymmdd): 19850618
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: 19111
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +87
Bottommost Latitude: +61
Leftmost Longitude: +179
Rightmost Longitude: -099
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: 19113
Datafile Header Info: PJCT=C32-553 FLGT= 3119 ,MTH= 6,DAY= 14, YR=1985,JDY= 165 -TO- 165,RCD= 19115,NAV=ESG ,CMP=INS1
Min/Max Data Record:
Longitude: -179.9977
Latitude: 61.2078
Mag Total Intensity Calc nT: 55703
Time Gmt Sec: 20432.7419
Mag East Component Obs nT: -1409
Mag North Component Obs nT: -1330
Mag Horizontal Intensity Calc nT: 14
Mag Vertical Intensity Obs nT: 53524
Mag Declination Calc Deg: -179.8003
Mag Inclination Calc Deg: 73.7206
Mag Total Intensity Obs nT: 55703
Alt Barometric Ft: 900
Min/Max Data Record:
Longitude: 179.9905
Latitude: 86.1481
Mag Total Intensity Calc nT: 57903
Time Gmt Sec: 60389.6528
Mag East Component Obs nT: 14238
Mag North Component Obs nT: 6718
Mag Horizontal Intensity Calc nT: 15631
Mag Vertical Intensity Obs nT: 57678
Mag Declination Calc Deg: 179.9777
Mag Inclination Calc Deg: 89.9860
Mag Total Intensity Obs nT: 57905
Alt Barometric Ft: 30900