Affichage des archives de mercredi, 23 août 2017
Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC
Publié: 2017 Aug 23 1231 UTC
Prévisions SIDC
Éruptions solaires
C-class flares expected, (probability >=50%)
Géomagnétisme
Minor storm expected (A>=30 or K=5)
Moniteur de Flux de Proton
Quiet
| Flux de 10 cm | Ap | |
|---|---|---|
| 23 Aug 2017 | 090 | 025 |
| 24 Aug 2017 | 091 | 012 |
| 25 Aug 2017 | 092 | 005 |
Bulletin
Over the past 24 hours several C-class flares have been detected. The most energetic flares were two C1.9 class flares, produced by NOAA Active Region (AR) 2671. NOAA AR 2672 and Catania Sunspot group 44 produced only B-class flares. No Earth directed Coronal Mass Ejections (CMEs) have been detected. More C-class flares are expected during the next 24 hours, with a small chance of M-class flare.
Geomagnetic conditions have been disturbed due to the long period of negative Bz since early today, Kp reached 4 during 03-09 UT; the local K Dourbes also went up to 4 today. Solar wind speed is increasing again from 04 UT today and currently around 490 km/s. Simultaneously interplanetary magnetic field intensity is increasing and currently around 7.5 nT; Bz is constantly decreasing till actual value of -6 nT. Therefore, more disturbed conditions are expected in the next 24 hours with Kp up to 5.
Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 066, sur la base de 15 stations.Indices solaires pour 22 Aug 2017
| Nombre de Wolf, observé par Catania | 058 |
| Flux solaire à 10 cm | 090 |
| AK Chambon La Forêt | 023 |
| AK Wingst | 021 |
| Ap estimé | 023 |
| Nombre international de taches solaires estimé | 059 - Basé sur 29 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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