Topic
DATE/TIME
10
Day of the year
10
Geomagnetic observatory
K index
10
Maximum fluctuation
10
Soviet data
Station label
10
Sum of 8 index values per day
10
geomagnetism
10
geophysics
10
historical data
10
Geomagnetic activity (World Data Center for Solar-Terrestrial Physics)
5
Geomagnetic activity World Data Center for Solar-Terrestrial Physics
5
Lower limit for K = 9 (depends on the latitude of the observatory)
5
Lower limit for K = 9 depends on the latitude of the observatory
5
MAGOBS
5
Russia
5
CCS_K_index
2
Cape Chelyuskin
2
YAK_K_index
2
Yakutsk
2
ARK_K_index
1
Arkhangelsk
1