Survey Identifier: NAV4051
Format Acronym: ARO88
Data Center File Number: 0480-082
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 4051 ~ 4,026 Nautical Miles
Survey Departure Date (yyyymmdd): 19831206
Survey Arrival Date (yyyymmdd): 19831206
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: 21877
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -24
Bottommost Latitude: -54
Leftmost Longitude: +146
Rightmost Longitude: +173
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: 21878
Datafile Header Info: PJCT=C32-451 FLGT= 4051 ,MTH= 12,DAY= 6, YR=1983,JDY= 340 -TO- 340,RCD= 21879,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: 146.9802
Latitude: -53.3428
Mag Total Intensity Calc nT: 49168
Time Gmt Sec: 30617.5359
Mag East Component Obs nT: 10501
Mag North Component Obs nT: 3970
Mag Horizontal Intensity Calc nT: 11656
Mag Vertical Intensity Obs nT: -64336
Mag Declination Calc Deg: 10.4683
Mag Inclination Calc Deg: -79.6960
Mag Total Intensity Obs nT: 49192
Alt Barometric Ft: 400
Min/Max Data Record:
Longitude: 172.5987
Latitude: -24.8749
Mag Total Intensity Calc nT: 65402
Time Gmt Sec: 74969.8506
Mag East Component Obs nT: 29842
Mag North Component Obs nT: 8228
Mag Horizontal Intensity Calc nT: 30681
Mag Vertical Intensity Obs nT: -38523
Mag Declination Calc Deg: 26.0943
Mag Inclination Calc Deg: -51.5207
Mag Total Intensity Obs nT: 65375
Alt Barometric Ft: 26900