Survey Identifier: NAV4031
Format Acronym: ARO88
Data Center File Number: 0480-048
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 C32-351: Flight 4031 ~ 3,499 Nautical Miles
Survey Departure Date (yyyymmdd): 19821105
Survey Arrival Date (yyyymmdd): 19821105
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: 17987
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -06
Bottommost Latitude: -28
Leftmost Longitude: +153
Rightmost Longitude: -167
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: 17987
Datafile Header Info: PJCT=C32-351 FLGT= 4031 ,MTH= 11,DAY= 5, YR=1982,JDY= 309 -TO- 309,RCD= 17988,NAV=INS1,CMP=INS2
Min/Max Data Record:
Longitude: -180.0222
Latitude: -27.3213
Mag Total Intensity Calc nT: 35557
Time Gmt Sec: 35611.8257
Mag East Component Obs nT: 28097
Mag North Component Obs nT: 5201
Mag Horizontal Intensity Calc nT: 28609
Mag Vertical Intensity Obs nT: -45375
Mag Declination Calc Deg: 8.7559
Mag Inclination Calc Deg: -57.7287
Mag Total Intensity Obs nT: 35688
Alt Barometric Ft: 5489
Min/Max Data Record:
Longitude: 179.9710
Latitude: -6.9154
Mag Total Intensity Calc nT: 53695
Time Gmt Sec: 74238.8252
Mag East Component Obs nT: 35200
Mag North Component Obs nT: 7301
Mag Horizontal Intensity Calc nT: 35700
Mag Vertical Intensity Obs nT: -8880
Mag Declination Calc Deg: 12.4250
Mag Inclination Calc Deg: -14.4615
Mag Total Intensity Obs nT: 53611
Alt Barometric Ft: 27900