Survey Identifier: NAV5098
Format Acronym: ARO88
Data Center File Number: 0550-073
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 C32-052: Flight 5098 ~ 3,921 Nautical Miles
Survey Departure Date (yyyymmdd): 19900221
Survey Arrival Date (yyyymmdd): 19900222
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: 20894
Magnetic Sensitivity: 0.1 nT
Topmost Latitude of Survey: -18
Bottommost Latitude: -50
Leftmost Longitude: +041
Rightmost Longitude: +056
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: 20894
Datafile Header Info: PJCT=C32-052 FLGT= 5098 ,MTH= 2,DAY= 21, YR=1990,JDY= 52 -TO- 52,RCD= 20896,NAV=ESG ,CMP=ESG
Min/Max Data Record:
Longitude: 41.7210
Latitude: -49.3021
Mag Total Intensity Calc nT: 31995
Time Gmt Sec: 0.2051
Mag East Component Obs nT: 12133
Mag North Component Obs nT: -12410
Mag Horizontal Intensity Calc nT: 15277
Mag Vertical Intensity Obs nT: -32529
Mag Declination Calc Deg: -45.1745
Mag Inclination Calc Deg: -62.0528
Mag Total Intensity Obs nT: 32001
Alt Barometric Ft: 1100
Min/Max Data Record:
Longitude: 55.9262
Latitude: -18.6739
Mag Total Intensity Calc nT: 36936
Time Gmt Sec: 86398.2051
Mag East Component Obs nT: 20065
Mag North Component Obs nT: -4367
Mag Horizontal Intensity Calc nT: 21138
Mag Vertical Intensity Obs nT: -26343
Mag Declination Calc Deg: -12.7038
Mag Inclination Calc Deg: -52.8779
Mag Total Intensity Obs nT: 36943
Alt Barometric Ft: 29100