Affichage des archives de vendredi, 9 février 2018
Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC
Publié: 2018 Feb 09 1617 UTC
Prévisions SIDC
Éruptions solaires
C-class flares expected, (probability >=50%)
Géomagnétisme
Quiet (A<20 and K<4)
Moniteur de Flux de Proton
Quiet
| Flux de 10 cm | Ap | |
|---|---|---|
| 09 Feb 2018 | 078 | 003 |
| 10 Feb 2018 | 079 | 004 |
| 11 Feb 2018 | 080 | 007 |
Bulletin
Solar activity was low. NOAA AR 2699 produced many B-class flares, the biggest flare B7.4 peaked yestreday at 16:59 UT. Now NOAA 2699 has beta-gamma magnetic field configuration and is expected to produce C-class flares and, with some small chance, M-class flares. Proton flux levels are at background values and are expected to remain so. No Earth-directed CMEs were observed. Solar wind speed decreased from 400 km/s till at 325 km/s with interplanetary magnetic field magnitude ranged from 4 to 5.5 nT. Geomagnetic conditions reached unsettled levels (K = 3) this morning due to the longer interval of the negative Bz value (-4.5 nT) and speeds reaching only 370 km/s. Quiet geomagnetic conditions can be expected in the next 48hrs.
Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 026, sur la base de 17 stations.Indices solaires pour 08 Feb 2018
| Nombre de Wolf, observé par Catania | 023 |
| Flux solaire à 10 cm | 078 |
| AK Chambon La Forêt | 010 |
| AK Wingst | 004 |
| Ap estimé | 003 |
| Nombre international de taches solaires estimé | 025 - 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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