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pro vyhledávání: '"D. P. Charrois"'
Autor:
D. P. Charrois, K. F. Tapping
Publikováno v:
Solar Physics. 150:305-315
The 10.7 cm flux data, which are widely used as an index of solar activity, are actually spot measurements of the solar flux density at 10.7 cm wavelength, made three times each day, usually at 17:00, 20:00, and 23:00 UT. These values, or the 20:00 U