Publié: 2014 Sep 19 1302 UTC
Eruptive (C-class flares expected, probability >=50%)
Quiet (A<20 and K<4)
Quiet
| Flux de 10 cm | Ap | |
|---|---|---|
| 19 Sep 2014 | 120 | 023 |
| 20 Sep 2014 | 125 | 007 |
| 21 Sep 2014 | 127 | 007 |
Only minor C-class flaring activity in past 24 hours. NOAA AR 2169 produced again the strongest one (C3.4, peak 17:30 UT on September 18). All regions visible on the solar disk have a simple magnetic structure (alpha or beta configuration), so flaring levels are not expected to grow significantly. Nevertheless, a group of seemingly more complex active regions is rotating into view now. A disturbance arrived to ACE at 07:00 UT with interplanetary magnetic field magnitudes reaching 18 nT and causing active and minor storm conditions at planetary levels (Kp 4 and 5). The cause could be a glancing blow of a CME related to an M1.5 flare on September 14. The magnetic field is currently very fluctuating but slowly returning to nominal levels, more active periods may occur in the next 24 hours.
Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 062, sur la base de 15 stations.
| Nombre de Wolf, observé par Catania | /// |
| Flux solaire à 10 cm | 120 |
| AK Chambon La Forêt | 021 |
| AK Wingst | 010 |
| Ap estimé | 009 |
| Nombre international de taches solaires estimé | 058 - 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
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 | 21/01/2026 | Kp7+ (G3) |
| Jours sans taches solaires | |
|---|---|
| Dernier jour sans taches solaires | 08/06/2022 |
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|---|---|
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