Survey Identifier: NAV5031
Format Acronym: ARO88
Data Center File Number: 0480-032
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 5031 ~ 3,678 Nautical Miles
Survey Departure Date (yyyymmdd): 19821004
Survey Arrival Date (yyyymmdd): 19821004
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: 15901
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -31
Bottommost Latitude: -67
Leftmost Longitude: +116
Rightmost Longitude: +146
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: 15903
Datafile Header Info: PJCT=C32-254 FLGT= 5031 ,MTH= 10,DAY= 4, YR=1982,JDY= 277 -TO- 277,RCD= 15904,NAV=INS2,CMP=INS2
Min/Max Data Record:
Longitude: 116.2013
Latitude: -66.3386
Mag Total Intensity Calc nT: 58639
Time Gmt Sec: 38804.8989
Mag East Component Obs nT: -366
Mag North Component Obs nT: -2162
Mag Horizontal Intensity Calc nT: 84
Mag Vertical Intensity Obs nT: -67266
Mag Declination Calc Deg: -72.9267
Mag Inclination Calc Deg: -89.9287
Mag Total Intensity Obs nT: 59606
Alt Barometric Ft: 6992
Min/Max Data Record:
Longitude: 145.7078
Latitude: -31.7248
Mag Total Intensity Calc nT: 67374
Time Gmt Sec: 79434.3984
Mag East Component Obs nT: 23259
Mag North Component Obs nT: 4293
Mag Horizontal Intensity Calc nT: 23288
Mag Vertical Intensity Obs nT: -53818
Mag Declination Calc Deg: 155.6235
Mag Inclination Calc Deg: -66.6014
Mag Total Intensity Obs nT: 67338
Alt Barometric Ft: 24900