Affichage des archives de mardi, 18 avril 2017
Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC
Publié: 2017 Apr 18 1230 UTC
Prévisions SIDC
Éruptions solaires
C-class flares expected, (probability >=50%)
Géomagnétisme
Active conditions expected (A>=20 or K=4)
Moniteur de Flux de Proton
Quiet
| Flux de 10 cm | Ap | |
|---|---|---|
| 18 Apr 2017 | 075 | 010 |
| 19 Apr 2017 | 078 | 014 |
| 20 Apr 2017 | 081 | 007 |
Bulletin
The recurrent regions rotating over the east limb produced a C3.3 flare, peaking at 09:41 UT. Dimmings indicate that a CME may have been associated with this flare, but no coronagraph data is available yet to confirm. More C-class flares are expected, and M-class flares are possible.
No Earth directed Coronal Mass Ejections (CMEs) have been detected. Solar protons have remained at background levels over the past 24 hours.
Geomagnetic conditions have been at k = 1-2 levels. Solar wind speed is now at 325 km/s with interplanetary magnetic fields of 5 nT. A high speed solar wind from an equatorial coronal hole is expected within 24 h. Active to minor storm conditions expected.
Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 023, sur la base de 21 stations.Indices solaires pour 17 Apr 2017
| Nombre de Wolf, observé par Catania | /// |
| Flux solaire à 10 cm | 075 |
| AK Chambon La Forêt | 008 |
| AK Wingst | 004 |
| Ap estimé | 003 |
| Nombre international de taches solaires estimé | 000 - Basé sur 30 stations |
Résumé des événements marquants
| 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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