Survey Identifier: NAV3150
Format Acronym: ARO88
Data Center File Number: 0480-280
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 C32-851, Flight 3150 ~ 3,562 Nautical Miles
Survey Departure Date (yyyymmdd): 19871026
Survey Arrival Date (yyyymmdd): 19871026
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: 18862
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +62
Bottommost Latitude: +34
Leftmost Longitude: -161
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: 18862
Datafile Header Info: PJCT=C32-851 FLGT= 3150 ,MTH= 10,DAY= 26, YR=1987,JDY= 299 -TO- 299,RCD= 18864,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -160.0273
Latitude: 34.9099
Mag Total Intensity Calc nT: 40727
Time Gmt Sec: 21403.1179
Mag East Component Obs nT: 13365
Mag North Component Obs nT: 5700
Mag Horizontal Intensity Calc nT: 14873
Mag Vertical Intensity Obs nT: 32195
Mag Declination Calc Deg: 13.6347
Mag Inclination Calc Deg: 52.1751
Mag Total Intensity Obs nT: 40745
Alt Barometric Ft: 400
Min/Max Data Record:
Longitude: -149.7571
Latitude: 61.3249
Mag Total Intensity Calc nT: 56256
Time Gmt Sec: 61728.6167
Mag East Component Obs nT: 24373
Mag North Component Obs nT: 6893
Mag Horizontal Intensity Calc nT: 25186
Mag Vertical Intensity Obs nT: 54254
Mag Declination Calc Deg: 26.4600
Mag Inclination Calc Deg: 74.6699
Mag Total Intensity Obs nT: 59414
Alt Barometric Ft: 31100