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*IONOSPHERIC DISTURBANCES
*REFLECTIVITY
1
*SOLAR ACTIVITY
1
ABSORPTION
1
ARTIFICIAL SATELLITES
ATMOSPHERIC SOUNDING
1
Astrophysics
1
Atmospheric Physics
1
DENSITY
1
DETECTORS
1
ENERGETIC PARTICLES
1
ENERGETIC PROPERTIES
1
FISCAL YEAR 93
1
GEOMAGNETISM
1
GREENLAND
1
HIGH RESOLUTION
1
LOW FREQUENCY
1
MAGNETOMETERS
1
PARTICLE FLUX
1
PARTICLES
1
PE62101F
1
PLANE WAVES
1
POLAR CAP
POLAR CAP ABSORPTION
1
PROPAGATION
1
REFLECTION
1
RESOLUTION
1
RIOMETERS
1
SBI1
1
VERY LOW FREQUENCY
1
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