Publié: 2018 Oct 21 1230 UTC
Quiet conditions (<50% probability of C-class flares)
Active conditions expected (A>=20 or K=4)
Quiet
| Flux de 10 cm | Ap | |
|---|---|---|
| 21 Oct 2018 | 070 | 013 |
| 22 Oct 2018 | 069 | 001 |
| 23 Oct 2018 | 068 | 001 |
There are no active regions visible on the solar disk. No C-class flares in past 24 h. Solar activity is expected to remain at low levels.
No Earth directed Coronal Mass Ejections (CMEs) have been detected. Solar protons have remained at background levels over the past 24 hours.
The solar wind speed is at 330 km/s with interplanetary magnetic fields of 8 nT. Geomagnetic conditions have been quiet. A sector boundary crossing occurred around 07:00 UT, the interplanetary magnetic field polarity changed from negative to positive. The solar wind speed started increasing since then, marking the late arrival of the high speed solar wind stream associated with the low latitudinal extension of the northern polar coronal hole coming to Earth. The effect is expected to be weak, producing up to active periods. A patchy negative polarity coronal hole traversed central meridian yesterday, its associated high speed stream will affect the Earth around October 24.
Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 17 stations.
| Nombre de Wolf, observé par Catania | /// |
| Flux solaire à 10 cm | 070 |
| AK Chambon La Forêt | 005 |
| AK Wingst | 002 |
| Ap estimé | 001 |
| Nombre international de taches solaires estimé | 000 - Basé sur 28 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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