Survey Identifier: NAV6012
Format Acronym: ARO88
Data Center File Number: 0480-007
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 A32-153, Flight 6012 ~ 3,026 Nautical Miles
Survey Departure Date (yyyymmdd): 19810604
Survey Arrival Date (yyyymmdd): 19810604
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: 16935
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +88
Bottommost Latitude: +64
Leftmost Longitude: -173
Rightmost Longitude: -147
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: 16934
Datafile Header Info: PJCT=A32-153 FLGT= 6012 ,MTH= 6,DAY= 4, YR=1981,JDY= 155 -TO- 155,RCD= 16935,NAV=ESG ,CMP=INS1
Min/Max Data Record:
Longitude: -179.9970
Latitude: 64.6397
Mag Total Intensity Calc nT: 52561
Time Gmt Sec: 36006.1216
Mag East Component Obs nT: 221
Mag North Component Obs nT: -1454
Mag Horizontal Intensity Calc nT: 1412
Mag Vertical Intensity Obs nT: 51449
Mag Declination Calc Deg: -11.9734
Mag Inclination Calc Deg: 76.3310
Mag Total Intensity Obs nT: 52588
Alt Barometric Ft: 0
Min/Max Data Record:
Longitude: 179.9969
Latitude: 88.0342
Mag Total Intensity Calc nT: 58023
Time Gmt Sec: 69873.2744
Mag East Component Obs nT: 11717
Mag North Component Obs nT: 6746
Mag Horizontal Intensity Calc nT: 13447
Mag Vertical Intensity Obs nT: 57756
Mag Declination Calc Deg: 81.9820
Mag Inclination Calc Deg: 88.5921
Mag Total Intensity Obs nT: 58015
Alt Barometric Ft: 25000