Survey Identifier: NAV1225
Format Acronym: ARO88
Data Center File Number: 0560-009
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 1225 ~ 2,954 Nautical Miles
Survey Departure Date (yyyymmdd): 19931014
Survey Arrival Date (yyyymmdd): 19931014
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: 16511
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +17
Bottommost Latitude: -27
Leftmost Longitude: -110
Rightmost Longitude: -099
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: 16511
Datafile Header Info: PJCT=D32-451 FLGT= 1225 ,MTH= 10,DAY= 14, YR=1993,JDY= 287 -TO- 287,RCD= 16513,NAV=GPS ,CMP=RLG
Min/Max Data Record:
Longitude: -109.4123
Latitude: -26.9762
Mag Total Intensity Calc nT: 29759
Time Gmt Sec: 21914.5801
Mag East Component Obs nT: 26027
Mag North Component Obs nT: 3597
Mag Horizontal Intensity Calc nT: 26999
Mag Vertical Intensity Obs nT: -20467
Mag Declination Calc Deg: -999.0000
Mag Inclination Calc Deg: -999.0000
Mag Total Intensity Obs nT: 29760
Alt Barometric Ft: 1073
Min/Max Data Record:
Longitude: -99.7162
Latitude: 16.6895
Mag Total Intensity Calc nT: 40624
Time Gmt Sec: 55280.4727
Mag East Component Obs nT: 30545
Mag North Component Obs nT: 7237
Mag Horizontal Intensity Calc nT: 30898
Mag Vertical Intensity Obs nT: 28014
Mag Declination Calc Deg: 15.5031
Mag Inclination Calc Deg: 43.5492
Mag Total Intensity Obs nT: 40607
Alt Barometric Ft: 25938