Affichage des archives de lundi, 5 février 2018
Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC
Publié: 2018 Feb 05 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 | |
|---|---|---|
| 05 Feb 2018 | 073 | 010 |
| 06 Feb 2018 | 072 | 008 |
| 07 Feb 2018 | 073 | 007 |
Bulletin
Solar activity was low. There is one active region NOAA 2699 that appeared in the eastern hemisphere and produced many B-class flares and one C1.1 flare that peaked at 20:24 UT yesterday. Now, NOAA 2699 has alpha 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 430 km/s now with interplanetary magnetic field magnitude of 5 nT. Geomagnetic conditions reached unsettled levels (K = 3) overnight due to the mild effect of the low latitude extension of the northern polar coronal hole (speeds reaching only 450 km/s and interplanetary magnetic field 9 nT). Quiet to unsettled conditions can be expected in the next 48 h.
Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 015, sur la base de 19 stations.Indices solaires pour 04 Feb 2018
| Nombre de Wolf, observé par Catania | /// |
| Flux solaire à 10 cm | 073 |
| AK Chambon La Forêt | 010 |
| AK Wingst | 004 |
| Ap estimé | 003 |
| Nombre international de taches solaires estimé | 000 - Basé sur 21 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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