Survey Identifier: NAV1144
Format Acronym: ARO88
Data Center File Number: 0480-194
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 C32-554, Flight 1144 ~ 3,519 Nautical Miles
Survey Departure Date (yyyymmdd): 19850901
Survey Arrival Date (yyyymmdd): 19850902
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: 18571
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +73
Bottommost Latitude: +38
Leftmost Longitude: -077
Rightmost Longitude: +017
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: 18573
Datafile Header Info: PJCT=C32-554 FLGT= 1144 ,MTH= 8,DAY= 12, YR=1985,JDY= 224 -TO- 225,RCD= 18574,NAV=ESG ,CMP=INS2
Min/Max Data Record:
Longitude: -76.1094
Latitude: 38.3286
Mag Total Intensity Calc nT: 52138
Time Gmt Sec: 2.0254
Mag East Component Obs nT: 5449
Mag North Component Obs nT: -6211
Mag Horizontal Intensity Calc nT: 8145
Mag Vertical Intensity Obs nT: 50182
Mag Declination Calc Deg: -48.3575
Mag Inclination Calc Deg: 67.7022
Mag Total Intensity Obs nT: 52139
Alt Barometric Ft: 600
Min/Max Data Record:
Longitude: 16.0773
Latitude: 72.3873
Mag Total Intensity Calc nT: 59136
Time Gmt Sec: 86399.5264
Mag East Component Obs nT: 20275
Mag North Component Obs nT: 441
Mag Horizontal Intensity Calc nT: 20594
Mag Vertical Intensity Obs nT: 58139
Mag Declination Calc Deg: 2.3368
Mag Inclination Calc Deg: 82.0092
Mag Total Intensity Obs nT: 59138
Alt Barometric Ft: 26900