Affichage des archives de dimanche, 28 janvier 2018
Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC
Publié: 2018 Jan 28 1230 UTC
Prévisions SIDC
Éruptions solaires
Quiet conditions (<50% probability of C-class flares)
Géomagnétisme
Quiet (A<20 and K<4)
Moniteur de Flux de Proton
Quiet
| Flux de 10 cm | Ap | |
|---|---|---|
| 28 Jan 2018 | 069 | 005 |
| 29 Jan 2018 | 069 | 011 |
| 30 Jan 2018 | 068 | 008 |
Bulletin
Solar activity was at very low levels. The Sun is spotless. No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal levels.
Solar activity is expected to remain at very low levels.
Solar wind speed declined from about 450 km/s to values just above 350 km/s. Bz varied between -4 and +3 nT (DSCOVR). The interplanetary magnetic field (IMF) was mostly directed towards the Sun, with some brief positive (away) periods.
The geomagnetic field was at quiet levels. Quiet to unsettled geomagnetic conditions are expected, with an active episode possible from the moderate speed wind streams associated with the CHs observed earlier this week.
Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 11 stations.Indices solaires pour 27 Jan 2018
| Nombre de Wolf, observé par Catania | /// |
| Flux solaire à 10 cm | 069 |
| AK Chambon La Forêt | 008 |
| AK Wingst | 008 |
| Ap estimé | 006 |
| Nombre international de taches solaires estimé | 000 - Basé sur 15 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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