Publié: 2025 Aug 28 1231 UTC
M-class flares expected (probability >=50%)
Quiet (A<20 and K<4)
Quiet
| Flux de 10 cm | Ap | |
|---|---|---|
| 28 Aug 2025 | 226 | 007 |
| 29 Aug 2025 | 226 | 007 |
| 30 Aug 2025 | 226 | 007 |
Solar flaring activity was low over the past 24 hours, with only C-class flares identified. The largest flare was a C9.2 flare (SIDC Flare 5247) peaking on August 27 at 12:50 UTC, which was produced by SIDC Sunspot Group 617 (NOAA Active Region 4199). A total of 14 numbered sunspot groups were identified on the disk over the past 24 hours. Solar flaring activity is expected to be low to moderate over the next 24 hours, with C-class flares expected and a chance for M-class flares.
No Earth-directed Coronal Mass Ejections (CMEs) have been observed in the last 24 hours.
The Earth is inside slow solar wind with speeds around 400 km/s and interplanetary magnetic fields of about 7 nT (directed towards the Sun, negative polarity). Similar conditions can be expected for the coming 24 hours.
Geomagnetic conditions have been quiet to unsettled (Kp and B_Bel between 0 and 3). Similar conditions are expected for the next 24 hours.
The greater than 10 MeV proton flux returned to nominal levels (below the 10 pfu threshold) at 15:30 UT on 27 August. It is expected to remain at nominal levels.
The greater than 2 MeV electron flux as measured by GOES 18 and 19 remained below the 1000 pfu alert threshold, similar conditions expected for the next 24 hours. The 24 h electron fluence was at normal levels and is expected to remain so.
Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 209, sur la base de 10 stations.
| Nombre de Wolf, observé par Catania | 173 |
| Flux solaire à 10 cm | 226 |
| AK Chambon La Forêt | 016 |
| AK Wingst | 009 |
| Ap estimé | 009 |
| Nombre international de taches solaires estimé | 207 - Basé sur 20 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
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