Survey Identifier: NAV4123


Format Acronym: ARO88
Data Center File Number: 0550-034
Parameters Surveyed Code: FXD
File Creation Date (yyyymmdd): 19940506
Source Institution: US Naval Oceanographic Office
Country: INTERNATIONAL
Platform Name: RP-3D ORION
Platform Type Code: 3
Platform Type: PLANE
Chief Scientists: Virgil R. Bettencourt
Project: Project Magnet: Project C32-951: Flight 4123 ~ 3,793 Nautical Miles
Survey Departure Date (yyyymmdd): 19881013
Survey Arrival Date (yyyymmdd): 19881013
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: 20291
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -53
Bottommost Latitude: -81
Leftmost Longitude: -100
Rightmost Longitude: -070
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: 20291
Datafile Header Info: PJCT=C32-951 FLGT= 4123 ,MTH= 10,DAY= 13, YR=1988,JDY= 287 -TO- 287,RCD= 20293,NAV=ESG ,CMP=ESG

Min/Max Data Record:
Longitude: -99.9889
Latitude: -80.2525
Mag Total Intensity Calc nT: 33453
Time Gmt Sec: 2065.5000
Mag East Component Obs nT: 13455
Mag North Component Obs nT: 5584
Mag Horizontal Intensity Calc nT: 18509
Mag Vertical Intensity Obs nT: -49931
Mag Declination Calc Deg: 14.8205
Mag Inclination Calc Deg: -69.6304
Mag Total Intensity Obs nT: 33466
Alt Barometric Ft: 500

Min/Max Data Record:
Longitude: -70.5536
Latitude: -53.0001
Mag Total Intensity Calc nT: 53262
Time Gmt Sec: 43462.2065
Mag East Component Obs nT: 21348
Mag North Component Obs nT: 13482
Mag Horizontal Intensity Calc nT: 22916
Mag Vertical Intensity Obs nT: -25265
Mag Declination Calc Deg: 44.0766
Mag Inclination Calc Deg: -48.9884
Mag Total Intensity Obs nT: 53380
Alt Barometric Ft: 32100