Survey Identifier: NAV4084
Format Acronym: ARO88
Data Center File Number: 0480-197
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 4084 ~ 3,929 Nautical Miles
Survey Departure Date (yyyymmdd): 19851211
Survey Arrival Date (yyyymmdd): 19851211
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: 19600
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +31
Bottommost Latitude: -28
Leftmost Longitude: -110
Rightmost Longitude: -086
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: 19602
Datafile Header Info: PJCT=C32-651 FLGT= 4084 ,MTH= 12,DAY= 11, YR=1985,JDY= 345 -TO- 345,RCD= 19603,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -109.3158
Latitude: -27.1698
Mag Total Intensity Calc nT: 29764
Time Gmt Sec: 10911.4130
Mag East Component Obs nT: 24378
Mag North Component Obs nT: 424
Mag Horizontal Intensity Calc nT: 24397
Mag Vertical Intensity Obs nT: -20193
Mag Declination Calc Deg: 0.9616
Mag Inclination Calc Deg: -36.9621
Mag Total Intensity Obs nT: 29770
Alt Barometric Ft: 1500
Min/Max Data Record:
Longitude: -86.9025
Latitude: 30.3495
Mag Total Intensity Calc nT: 50926
Time Gmt Sec: 50939.1758
Mag East Component Obs nT: 30551
Mag North Component Obs nT: 8105
Mag Horizontal Intensity Calc nT: 30876
Mag Vertical Intensity Obs nT: 44666
Mag Declination Calc Deg: 17.2515
Mag Inclination Calc Deg: 61.3004
Mag Total Intensity Obs nT: 50863
Alt Barometric Ft: 31000