Survey Identifier: NAV4052


Format Acronym: ARO88
Data Center File Number: 0480-081
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 C32-451: Flight 4052 ~ 3,547 Nautical Miles
Survey Departure Date (yyyymmdd): 19831209
Survey Arrival Date (yyyymmdd): 19831209
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: 17992
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -17
Bottommost Latitude: -28
Leftmost Longitude: +153
Rightmost Longitude: -149
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: 17994
Datafile Header Info: PJCT=C32-451 FLGT= 4052 ,MTH= 12,DAY= 9, YR=1983,JDY= 343 -TO- 343,RCD= 17995,NAV=ESG ,CMP=ESG

Min/Max Data Record:
Longitude: -179.9995
Latitude: -27.4077
Mag Total Intensity Calc nT: 36946
Time Gmt Sec: 31625.6799
Mag East Component Obs nT: 28094
Mag North Component Obs nT: 5346
Mag Horizontal Intensity Calc nT: 28611
Mag Vertical Intensity Obs nT: -45574
Mag Declination Calc Deg: 10.7519
Mag Inclination Calc Deg: -57.8384
Mag Total Intensity Obs nT: 37095
Alt Barometric Ft: -400

Min/Max Data Record:
Longitude: 179.9992
Latitude: -17.5686
Mag Total Intensity Calc nT: 53835
Time Gmt Sec: 68166.0762
Mag East Component Obs nT: 32262
Mag North Component Obs nT: 7761
Mag Horizontal Intensity Calc nT: 33148
Mag Vertical Intensity Obs nT: -17960
Mag Declination Calc Deg: 13.6698
Mag Inclination Calc Deg: -28.9343
Mag Total Intensity Obs nT: 69031
Alt Barometric Ft: 27000