Survey Identifier: NAV1224


Format Acronym: ARO88
Data Center File Number: 0560-008
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: Donald R. Wilson
Project: Project Magnet: Project C32-451: Flight 1224 ~ 1,096 Nautical Miles
Survey Departure Date (yyyymmdd): 19931010
Survey Arrival Date (yyyymmdd): 19931010
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: 6587
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +39
Bottommost Latitude: +26
Leftmost Longitude: -093
Rightmost Longitude: -076
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: 6587
Datafile Header Info: PJCT=D32-451 FLGT= 1224 ,MTH= 10,DAY= 10, YR=1993,JDY= 283 -TO- 283,RCD= 6589,NAV=GPS ,CMP=RLG

Min/Max Data Record:
Longitude: -92.8348
Latitude: 26.9022
Mag Total Intensity Calc nT: 47665
Time Gmt Sec: 15224.5000
Mag East Component Obs nT: 20296
Mag North Component Obs nT: -3746
Mag Horizontal Intensity Calc nT: 20596
Mag Vertical Intensity Obs nT: 40069
Mag Declination Calc Deg: -999.0000
Mag Inclination Calc Deg: -999.0000
Mag Total Intensity Obs nT: 47656
Alt Barometric Ft: 2480

Min/Max Data Record:
Longitude: -76.1763
Latitude: 38.2134
Mag Total Intensity Calc nT: 53674
Time Gmt Sec: 28615.8535
Mag East Component Obs nT: 25750
Mag North Component Obs nT: 1833
Mag Horizontal Intensity Calc nT: 25815
Mag Vertical Intensity Obs nT: 49506
Mag Declination Calc Deg: 4.0724
Mag Inclination Calc Deg: 67.3743
Mag Total Intensity Obs nT: 53684
Alt Barometric Ft: 23832