Publié: 2013 Oct 19 1303 UTC
Eruptive (C-class flares expected, probability >=50%)
Quiet (A<20 and K<4)
Quiet
| Flux de 10 cm | Ap | |
|---|---|---|
| 19 Oct 2013 | 138 | 007 |
| 20 Oct 2013 | 136 | 007 |
| 21 Oct 2013 | 135 | 010 |
Only C-class flares were observed in the past 24h, the strongest was a C8.4 with peak at 15:26 UT on October 18, from NOAA 1861. As this AR (and NOAA 1865) are rotating over the west limb, only C-class flares are expected (but still M-flares remain possible). Geomagnetic conditions have been quiet. There is a coronal hole which influence may reach the Earth in the coming 48h, but it is located probably too much to the north (40 degrees) to become geoeffective.
Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 092, sur la base de 12 stations.
| Nombre de Wolf, observé par Catania | 168 |
| Flux solaire à 10 cm | 140 |
| AK Chambon La Forêt | 005 |
| AK Wingst | 001 |
| Ap estimé | 002 |
| Nombre international de taches solaires estimé | 115 - Basé sur 19 stations |
| Jour | Commencer | Max | Fin | Loc | Force | OP | 10cm | Catania/NOAA | Types de sursaut radio | |
|---|---|---|---|---|---|---|---|---|---|---|
| Aucun | ||||||||||
Données fournies par le Solar Influences Data analysis Center© - SIDC - Traité par SpaceWeatherLive
Toutes les heures sont indiquées en UTC
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| Dernière classe X | 18/01/2026 | X1.9 |
| Dernière classe M | 21/01/2026 | M3.4 |
| Dernier orage géomagnétique | 22/01/2026 | Kp5+ (G1) |
| Jours sans taches solaires | |
|---|---|
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