International Q-Days and D-Days

A detailed explanation of International Q-Days and D-Days can be found here.

Kp index data from this website is distributed under the Creative Commons Attribution 4.0 International (CC BY 4.0)

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Dr. Jürgen Matzka
Geomagnetism

Lindenstr. 7
Building H 1, room 213
14823 Niemegk
tel. +49 33843 624-18

Contact

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Prof. Dr. Claudia Stolle
Geomagnetism

Behlertstraße 3a
Building K 3, room 006
14467 Potsdam
tel. +49 331 288-1230