Publié: 2013 Jan 23 1216 UTC
Eruptive (C-class flares expected, probability >= 50%)
Active conditions expected (A>=20 or K=4)
Quiet
| Flux de 10 cm | Ap | |
|---|---|---|
| 23 Jan 2013 | 112 | 003 |
| 24 Jan 2013 | 114 | 003 |
| 25 Jan 2013 | 116 | 014 |
Catania sunspot group 70 (NOAA AR 1660) still has the potential to produce a C-class flare. A B5.4 flare peaking around 03:31 UT in this group was accompanied by coronal dimmings and a post-eruption arcade, but with only a weak and narrow CME (according to STEREO COR2 data) that is not expected to arrive at the Earth. The Earth is currently inside a slow (around 290 km/s) solar wind flow with weak (around 1-2 nT) interplanetary magnetic field magnitude. We expect quiet geomagnetic conditions in the coming hours. On January 25 we expect the arrival of a fast solar wind stream emanating from a low-latitude coronal hole in the southern hemisphere, possibly resulting in active geomagnetic conditions.
Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 042, sur la base de 09 stations.
| Nombre de Wolf, observé par Catania | 062 |
| Flux solaire à 10 cm | 110 |
| AK Chambon La Forêt | 005 |
| AK Wingst | 000 |
| Ap estimé | 001 |
| Nombre international de taches solaires estimé | 038 - Basé sur 16 stations |
| Jour | Commencer | Max | Fin | Loc | Force | OP | 10cm | Types de sursaut radio | Catania/NOAA | |
|---|---|---|---|---|---|---|---|---|---|---|
| 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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