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Earth, Planets and Space

Table 1 Characteristics of the followed transmitters, ordered by frequency increase

From: Role of hard X-ray emission in ionospheric D-layer disturbances during solar flares

Station

Freq. (kHz)

Distance (km)

Angle \(\left( ^\circ \right)\)

SR location

GQD

19.58

777

330.9

51N01E

ICV

20.28

1057

146.1

45N06E

GVT

22.10

746

331.9

51N00E

NAA

24.00

5132

265.0

51N15W

NRK

37.50

2234

318.2

56N07W

NSY

45.90

1632

142.7

43N08E

  1. The first two columns give the station name and the transmission frequency, the third column indicates the distance to Meudon along a Great Circle Path, the fourth column gives the azimuth angle of the transmitter to Meudon. The fifth column indicates the location of the sub-reflection (SR) area
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