Survey Identifier: NAV4105
Format Acronym: ARO88
Data Center File Number: 0480-269
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 C32-852, Flight 4105 ~ 4,021 Nautical Miles
Survey Departure Date (yyyymmdd): 19880302
Survey Arrival Date (yyyymmdd): 19880302
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: 21478
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +07
Bottommost Latitude: -18
Leftmost Longitude: -150
Rightmost Longitude: -131
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: 21478
Datafile Header Info: PJCT=C32-852 FLGT= 4105 ,MTH= 3,DAY= 15, YR=1988,JDY= 75 -TO- 75,RCD= 21480,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: -149.8777
Latitude: -17.8017
Mag Total Intensity Calc nT: 31900
Time Gmt Sec: 17162.3599
Mag East Component Obs nT: 30508
Mag North Component Obs nT: 4885
Mag Horizontal Intensity Calc nT: 31036
Mag Vertical Intensity Obs nT: -19483
Mag Declination Calc Deg: 8.9279
Mag Inclination Calc Deg: -31.5323
Mag Total Intensity Obs nT: 31902
Alt Barometric Ft: 100
Min/Max Data Record:
Longitude: -131.9329
Latitude: 6.2212
Mag Total Intensity Calc nT: 37541
Time Gmt Sec: 61559.4277
Mag East Component Obs nT: 32279
Mag North Component Obs nT: 7247
Mag Horizontal Intensity Calc nT: 32748
Mag Vertical Intensity Obs nT: 9573
Mag Declination Calc Deg: 13.0556
Mag Inclination Calc Deg: 17.0272
Mag Total Intensity Obs nT: 37558
Alt Barometric Ft: 28100