Survey Identifier: NAV5046
Format Acronym: ARO88
Data Center File Number: 0480-062
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 C32-352: Flight 5046 ~ 3,873 Nautical Miles
Survey Departure Date (yyyymmdd): 19830319
Survey Arrival Date (yyyymmdd): 19830320
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: 20656
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -31
Bottommost Latitude: -46
Leftmost Longitude: +082
Rightmost Longitude: +117
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: 20657
Datafile Header Info: PJCT=C32-352 FLGT= 5046 ,MTH= 3,DAY= 19, YR=1983,JDY= 78 -TO- 78,RCD= 20658,NAV=ESG ,CMP=INS2
Min/Max Data Record:
Longitude: 82.0148
Latitude: -45.9479
Mag Total Intensity Calc nT: 51611
Time Gmt Sec: 0.2354
Mag East Component Obs nT: 11648
Mag North Component Obs nT: -12914
Mag Horizontal Intensity Calc nT: 16745
Mag Vertical Intensity Obs nT: -56249
Mag Declination Calc Deg: -47.9212
Mag Inclination Calc Deg: -73.1053
Mag Total Intensity Obs nT: 51625
Alt Barometric Ft: 300
Min/Max Data Record:
Longitude: 116.0133
Latitude: -31.5992
Mag Total Intensity Calc nT: 59160
Time Gmt Sec: 86398.2354
Mag East Component Obs nT: 23478
Mag North Component Obs nT: -1105
Mag Horizontal Intensity Calc nT: 23515
Mag Vertical Intensity Obs nT: -47950
Mag Declination Calc Deg: -2.7395
Mag Inclination Calc Deg: -66.2633
Mag Total Intensity Obs nT: 59128
Alt Barometric Ft: 32900