Affichage des archives de mardi, 23 juin 2015

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Rapports
Activité solaire
Activité aurorale
Second strongest storm, M6.6 CME analysis

We are still very much under the influence of the 21 June coronal mass ejection that arrived yesterday evening. The NOAA SWPC reported that the severe G4 geomagnetic storming threshold was reached and the Wing Kp-index even went up to Kp9 which stands for extreme G5 geomagnetic storm conditions, but the G5 reported by the Wing-Kp is questionable. The disturbance storm time index (another way of classifying geomagnetic storms where a lower number means a stronger storm) reached -195nT (for now at least) which makes this the second strongest geomagnetic storm of this solar cycle. The 2015/03/17 geomagnetic storm remains the strongest storm of this solarcycle with a Dst of -221 nT.

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La Météo Spatiale en faits

Dernière classe X08/12/2025X1.1
Dernière classe M11/01/2026M3.3
Dernier orage géomagnétique11/01/2026Kp5+ (G1)
Jours sans taches solaires
Dernier jour sans taches solaires08/06/2022
Nombre mensuel moyen de taches solaires
décembre 2025124 +32.2
janvier 2026100.8 -23.2
30 derniers jours99.2 -9.4

A ce jour dans l'histoire*

Éruptions solaires
12002M4.98
22000M4.01
32002M2.52
42002M1.89
52000M1.79
DstG
11989-106G2
21992-93
32000-71
41976-61G1
52005-50G1
*depuis 1994

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