Survey Identifier: NAV1100
Format Acronym: ARO88
Data Center File Number: 0480-056
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 C32-352: Flight 1100 ~849 Nautical Miles
Survey Departure Date (yyyymmdd): 19830409
Survey Arrival Date (yyyymmdd): 19830409
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: 3871
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: +31
Bottommost Latitude: +19
Leftmost Longitude: -100
Rightmost Longitude: -089
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: 3872
Datafile Header Info: PJCT=C32-352 FLGT= 1100 ,MTH= 4,DAY= 9, YR=1983,JDY= 99 -TO- 99,RCD= 3873,NAV=ESG ,CMP=INS1
Min/Max Data Record:
Longitude: -99.2098
Latitude: 19.3924
Mag Total Intensity Calc nT: 42729
Time Gmt Sec: 57757.3687
Mag East Component Obs nT: 24359
Mag North Component Obs nT: 822
Mag Horizontal Intensity Calc nT: 24373
Mag Vertical Intensity Obs nT: 31124
Mag Declination Calc Deg: 1.9171
Mag Inclination Calc Deg: 46.6959
Mag Total Intensity Obs nT: 42799
Alt Barometric Ft: 300
Min/Max Data Record:
Longitude: -89.0330
Latitude: 30.4060
Mag Total Intensity Calc nT: 50998
Time Gmt Sec: 65760.6016
Mag East Component Obs nT: 29164
Mag North Component Obs nT: 4058
Mag Horizontal Intensity Calc nT: 29416
Mag Vertical Intensity Obs nT: 44745
Mag Declination Calc Deg: 7.9531
Mag Inclination Calc Deg: 61.4036
Mag Total Intensity Obs nT: 50786
Alt Barometric Ft: 25900