Affichage des archives de lundi, 31 décembre 2018
Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC
Publié: 2018 Dec 31 1249 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 | |
|---|---|---|
| 31 Dec 2018 | 069 | 008 |
| 01 Jan 2019 | 069 | 008 |
| 02 Jan 2019 | 069 | 007 |
Bulletin
Solar activity remained at very low levels. The Sun was spotless. No earth-directed coronal mass ejections (CMEs) were observed over the last 24 hours. The greater than 10 MeV proton flux was at nominal values. A negative polarity equatorial coronal hole (CH) started its transit of the central meridian yesterday. Solar activity is expected to remain at very low levels. Solar wind speed gradually decreased from about 560 till 460 km/s (DSCOVR). Bz varied between -5.8 and +5 nT. The interplanetary magnetic field was directed away from the Sun (positive sector). Geomagnetic activity ranged from quiet to unsettled conditions. Quiet to unsettled geomagnetic conditions are expected.
Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 10 stations.Indices solaires pour 30 Dec 2018
| Nombre de Wolf, observé par Catania | /// |
| Flux solaire à 10 cm | 069 |
| AK Chambon La Forêt | 018 |
| AK Wingst | /// |
| Ap estimé | 012 |
| Nombre international de taches solaires estimé | 000 - Basé sur 18 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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