Survey Identifier: NAV5072
Format Acronym: ARO88
Data Center File Number: 0480-321
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 C32-853, Flight 5072 ~ 3,591 Nautical Miles
Survey Departure Date (yyyymmdd): 19880425
Survey Arrival Date (yyyymmdd): 19880426
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: 20734
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +11
Bottommost Latitude: -08
Leftmost Longitude: +039
Rightmost Longitude: +073
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: 20734
Datafile Header Info: PJCT=C32-853 FLGT= 5072 ,MTH= 4,DAY= 25, YR=1988,JDY= 116 -TO- 117
Min/Max Data Record:
Longitude: 39.5810
Latitude: -7.3565
Mag Total Intensity Calc nT: 33582
Time Gmt Sec: 0.6709
Mag East Component Obs nT: 28631
Mag North Component Obs nT: -4975
Mag Horizontal Intensity Calc nT: 28640
Mag Vertical Intensity Obs nT: -23084
Mag Declination Calc Deg: -8.8846
Mag Inclination Calc Deg: -35.2541
Mag Total Intensity Obs nT: 33571
Alt Barometric Ft: 100
Min/Max Data Record:
Longitude: 72.3885
Latitude: 10.0591
Mag Total Intensity Calc nT: 40360
Time Gmt Sec: 86398.6709
Mag East Component Obs nT: 38019
Mag North Component Obs nT: -500
Mag Horizontal Intensity Calc nT: 38046
Mag Vertical Intensity Obs nT: 3772
Mag Declination Calc Deg: -0.7868
Mag Inclination Calc Deg: 5.8138
Mag Total Intensity Obs nT: 40144
Alt Barometric Ft: 22200