Publié: 2018 Feb 08 1253 UTC
Quiet conditions (<50% probability of C-class flares)
Quiet (A<20 and K<4)
Quiet
| Flux de 10 cm | Ap | |
|---|---|---|
| 08 Feb 2018 | 077 | 004 |
| 09 Feb 2018 | 078 | 006 |
| 10 Feb 2018 | 077 | 006 |
Solar activity slightly increased during the period. Two C-class flares were recorded: a C8.1 flare peaking at the beginning of the period (13:47 UT), and then a C1.7 event peaking at 14:39 UT. Both flares originated from NOAA 2699 active region, which developed it's magnetic configuration from beta to beta-gamma. Proton flux levels are at background values and are expected to remain so. No Earth-directed CMEs were observed. C-class flaring remains possible, with a small chance on an isolated M-class flare. Solar wind speed decreased from 425 km/s till at 390 km/s during the period. Interplanetary magnetic field magnitude is below 5 nT. Geomagnetic conditions have been very quiet. A low latitude extension of the northern polar coronal hole has still a slight chance to affect geomagnetic environment in the next 48hrs, unsettled conditions can be expected then.
Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 024, sur la base de 13 stations.
| Nombre de Wolf, observé par Catania | 022 |
| Flux solaire à 10 cm | 077 |
| AK Chambon La Forêt | 005 |
| AK Wingst | 002 |
| Ap estimé | 002 |
| Nombre international de taches solaires estimé | 022 - Basé sur 27 stations |
| 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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