Survey Identifier: NAV2023
Format Acronym: ARO88
Data Center File Number: 0480-150
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 C32-552, Flight 2023 ~ 3,469 Nautical Miles
Survey Departure Date (yyyymmdd): 19850302
Survey Arrival Date (yyyymmdd): 19850302
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: 18475
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -34
Bottommost Latitude: -60
Leftmost Longitude: -071
Rightmost Longitude: -026
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: 18477
Datafile Header Info: PJCT=C32-552 FLGT= 2023 ,MTH= 3,DAY= 2, YR=1985,JDY= 61 -TO- 61,RCD= 18478,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -70.7379
Latitude: -59.0119
Mag Total Intensity Calc nT: 24015
Time Gmt Sec: 3147.9370
Mag East Component Obs nT: 15175
Mag North Component Obs nT: -4236
Mag Horizontal Intensity Calc nT: 15710
Mag Vertical Intensity Obs nT: -29722
Mag Declination Calc Deg: -15.4164
Mag Inclination Calc Deg: -55.8152
Mag Total Intensity Obs nT: 24023
Alt Barometric Ft: 100
Min/Max Data Record:
Longitude: -26.0688
Latitude: -34.8071
Mag Total Intensity Calc nT: 37075
Time Gmt Sec: 42901.0576
Mag East Component Obs nT: 21499
Mag North Component Obs nT: 6150
Mag Horizontal Intensity Calc nT: 22349
Mag Vertical Intensity Obs nT: -13853
Mag Declination Calc Deg: 16.0562
Mag Inclination Calc Deg: -35.2030
Mag Total Intensity Obs nT: 37055
Alt Barometric Ft: 26000