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DATE/TIME
5
Day of the year
5
Geomagnetic activity (World Data Center for Solar-Terrestrial Physics)
5
Geomagnetic observatory
K index
5
Lower limit for K = 9 (depends on the latitude of the observatory)
5
MAGOBS
5
Maximum fluctuation
Russia
5
Soviet data
Station label
Sum of 8 index values per day
5
geomagnetism
5
geophysics
historical data
CCS_K_index
2
Cape Chelyuskin
2
YAK_K_index
2
Yakutsk
2
ARK_K_index
1
Arkhangelsk
1
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