Affichage des archives de mercredi, 31 janvier 2018
Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC
Publié: 2018 Jan 31 1230 UTC
Prévisions SIDC
Éruptions solaires
Quiet conditions (<50% probability of C-class flares)
Géomagnétisme
Active conditions expected (A>=20 or K=4)
Moniteur de Flux de Proton
Quiet
| Flux de 10 cm | Ap | |
|---|---|---|
| 31 Jan 2018 | 070 | 014 |
| 01 Feb 2018 | 072 | 010 |
| 02 Feb 2018 | 074 | 007 |
Bulletin
Solar activity was low, no C-class flares in past 24 h. There is one new active region that emerged in the eastern hemisphere, it has beta magnetic field configuration and is not expected to produce significant flares in the coming hours.
Proton flux levels are at background values and are expected to remain so. No Earth-directed CMEs were observed.
Solar wind speed is at 375 km/s with interplanetary magnetic field magnitude of 7 nT. Geomagnetic conditions have been quiet. Isolated active periods are possible today, due to the probable arrival of moderately fast solar wind streams associated with a negative polarity diffuse equatorial coronal hole.
Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 012, sur la base de 05 stations.Indices solaires pour 30 Jan 2018
| Nombre de Wolf, observé par Catania | 011 |
| Flux solaire à 10 cm | 069 |
| AK Chambon La Forêt | 004 |
| AK Wingst | 003 |
| Ap estimé | 003 |
| Nombre international de taches solaires estimé | 000 - Basé sur 25 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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