Survey Identifier: NAV4078
Format Acronym: ARO88
Data Center File Number: 0480-206
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 C32-651, Flight 4078 ~ 3,545 Nautical Miles
Survey Departure Date (yyyymmdd): 19851123
Survey Arrival Date (yyyymmdd): 19851123
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: 18490
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -42
Bottommost Latitude: -71
Leftmost Longitude: +147
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: 18492
Datafile Header Info: PJCT=C32-651 FLGT= 4078 ,MTH= 11,DAY= 23, YR=1985,JDY= 327 -TO- 327,RCD= 18493,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: 147.5067
Latitude: -70.2203
Mag Total Intensity Calc nT: 58513
Time Gmt Sec: 28928.3789
Mag East Component Obs nT: -1813
Mag North Component Obs nT: 4266
Mag Horizontal Intensity Calc nT: 4624
Mag Vertical Intensity Obs nT: -66428
Mag Declination Calc Deg: 13.4088
Mag Inclination Calc Deg: -86.0105
Mag Total Intensity Obs nT: 58517
Alt Barometric Ft: 0
Min/Max Data Record:
Longitude: 172.5671
Latitude: -42.8521
Mag Total Intensity Calc nT: 66724
Time Gmt Sec: 66477.6719
Mag East Component Obs nT: 19832
Mag North Component Obs nT: 8190
Mag Horizontal Intensity Calc nT: 21423
Mag Vertical Intensity Obs nT: -54488
Mag Declination Calc Deg: 110.3419
Mag Inclination Calc Deg: -68.5449
Mag Total Intensity Obs nT: 66729
Alt Barometric Ft: 33200