Survey Identifier: NAV3154
Format Acronym: ARO88
Data Center File Number: 0480-282
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 3154 ~ 3,454 Nautical Miles
Survey Departure Date (yyyymmdd): 19871108
Survey Arrival Date (yyyymmdd): 19871108
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: 17608
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +46
Bottommost Latitude: +21
Leftmost Longitude: -171
Rightmost Longitude: -158
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: 17610
Datafile Header Info: PJCT=C32-851 FLGT= 3154 ,MTH= 11,DAY= 8, YR=1987,JDY= 312 -TO- 312,RCD= 17612,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -170.3381
Latitude: 21.1647
Mag Total Intensity Calc nT: 35419
Time Gmt Sec: 25469.7610
Mag East Component Obs nT: 22572
Mag North Component Obs nT: 4363
Mag Horizontal Intensity Calc nT: 23182
Mag Vertical Intensity Obs nT: 22018
Mag Declination Calc Deg: 10.2289
Mag Inclination Calc Deg: 38.2493
Mag Total Intensity Obs nT: 18364
Alt Barometric Ft: -100
Min/Max Data Record:
Longitude: -158.0732
Latitude: 45.2878
Mag Total Intensity Calc nT: 45338
Time Gmt Sec: 61477.6587
Mag East Component Obs nT: 27619
Mag North Component Obs nT: 5663
Mag Horizontal Intensity Calc nT: 28191
Mag Vertical Intensity Obs nT: 38950
Mag Declination Calc Deg: 13.4256
Mag Inclination Calc Deg: 59.2400
Mag Total Intensity Obs nT: 45351
Alt Barometric Ft: 29200