Affichage des archives de jeudi, 10 janvier 2019
Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC
Publié: 2019 Jan 10 1231 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
No forecast
| Flux de 10 cm | Ap | |
|---|---|---|
| 10 Jan 2019 | 073 | 003 |
| 11 Jan 2019 | 073 | 004 |
| 12 Jan 2019 | 073 | 008 |
Bulletin
The solar activity has been quiet over the past 24 hours. The X-ray flux remained below B-level, and the visible solar disc is spotless. Solar activity is expected to remain at low levels.
Some few narrow and slow solar Coronal Mass Ejections have been observed at the limb but no Earth directed component has been identified. The greater than 10 MeV solar protons flux remained at nominal levels over the past 24 hours and is expected to remain so.
The solar wind parameters continued to slowly return toward nominal values. The wind speed decreased from about 400 to 340 km/s. Total interplanetary magnetic field strength was below 5.5 nT. The southward magnetic component remained between -4.5 and 3.0 nT. The solar wind speed is expected to decrease further and remain at ambient background and slow solar wind speed regime for the next 24-hour period. A small equatorial coronal hole of negative polarity is now facing Earth, this might influence and slightly enhanced the solar wind parameters on January 13.
The geomagnetic conditions were quiet and are expected to remain quiet during the following next 24-hour period.
Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 08 stations.Indices solaires pour 09 Jan 2019
| Nombre de Wolf, observé par Catania | /// |
| Flux solaire à 10 cm | 072 |
| AK Chambon La Forêt | 006 |
| AK Wingst | 005 |
| Ap estimé | 004 |
| Nombre international de taches solaires estimé | 000 - Basé sur 23 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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