Publié: 2015 Jul 31 1230 UTC
Quiet conditions (<50% probability of C-class flares)
Active conditions expected (A>=20 or K=4)
Quiet
| Flux de 10 cm | Ap | |
|---|---|---|
| 31 Jul 2015 | 102 | 022 |
| 01 Aug 2015 | 104 | 017 |
| 02 Aug 2015 | 106 | 007 |
Solar activity is low, no C-class flares in past 24 h and the situation is not expected to change in the coming hours.
The Earth is under the influence of a fast speed stream emanating from a coronal hole, solar wind speeds are around 500 km/s with interplanetary magnetic field magnitudes of 10 nT. Active conditions were observed overnight and more active to minor storm periods can be expected in the next 48 hours.
Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 080, sur la base de 25 stations.
| Nombre de Wolf, observé par Catania | 100 |
| Flux solaire à 10 cm | 102 |
| AK Chambon La Forêt | 024 |
| AK Wingst | 020 |
| Ap estimé | 017 |
| Nombre international de taches solaires estimé | 086 - Basé sur 35 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
A lot of people come to SpaceWeatherLive to follow the Solar activity or if there is a chance to see the aurora, but with more traffic comes higher costs to keep the servers online. If you like SpaceWeatherLive and want to support the project you can choose a subscription for an ad-free site or consider a donation. With your help we can keep SpaceWeatherLive online!
| Dernière classe X | 18/01/2026 | X1.9 |
| Dernière classe M | 17/01/2026 | M1.1 |
| Dernier orage géomagnétique | 17/01/2026 | Kp5+ (G1) |
| Jours sans taches solaires | |
|---|---|
| Dernier jour sans taches solaires | 08/06/2022 |
| Nombre mensuel moyen de taches solaires | |
|---|---|
| décembre 2025 | 124 +32.2 |
| janvier 2026 | 100.6 -23.4 |
| 30 derniers jours | 106.1 -0.7 |