Survey Identifier: NAV5023
Format Acronym: ARO88
Data Center File Number: 0480-030
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 C32-254: Flight 5023 ~4,018 Nautical Miles
Survey Departure Date (yyyymmdd): 19820903
Survey Arrival Date (yyyymmdd): 19820904
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: 20869
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -20
Bottommost Latitude: -50
Leftmost Longitude: +054
Rightmost Longitude: +072
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: 20869
Datafile Header Info: PJCT=C32-254 FLGT= 5023 ,MTH= 9,DAY= 3, YR=1982,JDY= 246 -TO- 246,RCD= 20870,NAV=ESG ,CMP=INS1
Min/Max Data Record:
Longitude: 54.0350
Latitude: -49.9719
Mag Total Intensity Calc nT: 34930
Time Gmt Sec: 0.1104
Mag East Component Obs nT: 10826
Mag North Component Obs nT: -14841
Mag Horizontal Intensity Calc nT: 18029
Mag Vertical Intensity Obs nT: -45126
Mag Declination Calc Deg: -53.8770
Mag Inclination Calc Deg: -67.9979
Mag Total Intensity Obs nT: 29149
Alt Barometric Ft: 1784
Min/Max Data Record:
Longitude: 71.7872
Latitude: -20.6822
Mag Total Intensity Calc nT: 48680
Time Gmt Sec: 86398.1104
Mag East Component Obs nT: 20301
Mag North Component Obs nT: -6106
Mag Horizontal Intensity Calc nT: 21499
Mag Vertical Intensity Obs nT: -28691
Mag Declination Calc Deg: -17.3669
Mag Inclination Calc Deg: -54.2804
Mag Total Intensity Obs nT: 48640
Alt Barometric Ft: 27900