Survey Identifier: NAV1168


Format Acronym: ARO88
Data Center File Number: 0480-298
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 C32-853, Flight 1168 ~ 3,914 Nautical Miles
Survey Departure Date (yyyymmdd): 19880415
Survey Arrival Date (yyyymmdd): 19880415
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: 19806
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +40
Bottommost Latitude: +13
Leftmost Longitude: -076
Rightmost Longitude: -035
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: 19806
Datafile Header Info: PJCT=C32-853 FLGT= 1168 ,MTH= 4,DAY= 15, YR=1988,JDY= 106 -TO- 106,RCD= 19808,NAV=ESG ,CMP=ESG

Min/Max Data Record:
Longitude: -75.2744
Latitude: 13.1114
Mag Total Intensity Calc nT: 34332
Time Gmt Sec: 3830.8720
Mag East Component Obs nT: 19574
Mag North Component Obs nT: -9103
Mag Horizontal Intensity Calc nT: 20013
Mag Vertical Intensity Obs nT: 16732
Mag Declination Calc Deg: -18.2453
Mag Inclination Calc Deg: 29.1572
Mag Total Intensity Obs nT: 34330
Alt Barometric Ft: 9800

Min/Max Data Record:
Longitude: -35.0336
Latitude: 39.1437
Mag Total Intensity Calc nT: 54219
Time Gmt Sec: 44703.7568
Mag East Component Obs nT: 28698
Mag North Component Obs nT: -3771
Mag Horizontal Intensity Calc nT: 29991
Mag Vertical Intensity Obs nT: 50375
Mag Declination Calc Deg: -10.6398
Mag Inclination Calc Deg: 68.3323
Mag Total Intensity Obs nT: 54237
Alt Barometric Ft: 26200