Survey Identifier: NAV3085


Format Acronym: ARO88
Data Center File Number: 0480-068
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 C32-353: Flight 3085 ~ 3,842 Nautical Miles
Survey Departure Date (yyyymmdd): 19830628
Survey Arrival Date (yyyymmdd): 19830628
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: 20269
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +22
Bottommost Latitude: +15
Leftmost Longitude: -159
Rightmost Longitude: -126
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: 20269
Datafile Header Info: PJCT=C32-353 FLGT= 3085 ,MTH= 6,DAY= 28, YR=1983,JDY= 179 -TO- 179,RCD= 20270,NAV=ESG ,CMP=ESG

Min/Max Data Record:
Longitude: -158.1250
Latitude: 14.9979
Mag Total Intensity Calc nT: 34468
Time Gmt Sec: 24668.6248
Mag East Component Obs nT: 26973
Mag North Component Obs nT: 4842
Mag Horizontal Intensity Calc nT: 27441
Mag Vertical Intensity Obs nT: 18092
Mag Declination Calc Deg: 9.5684
Mag Inclination Calc Deg: 31.6422
Mag Total Intensity Obs nT: 35684
Alt Barometric Ft: 497

Min/Max Data Record:
Longitude: -126.9021
Latitude: 21.3260
Mag Total Intensity Calc nT: 39280
Time Gmt Sec: 68378.8711
Mag East Component Obs nT: 29765
Mag North Component Obs nT: 5722
Mag Horizontal Intensity Calc nT: 30207
Mag Vertical Intensity Obs nT: 26278
Mag Declination Calc Deg: 11.4436
Mag Inclination Calc Deg: 42.0448
Mag Total Intensity Obs nT: 39290
Alt Barometric Ft: 28500