Affichage des archives de jeudi, 9 novembre 2017
Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC
Publié: 2017 Nov 09 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 | |
|---|---|---|
| 09 Nov 2017 | 068 | 022 |
| 10 Nov 2017 | 068 | 019 |
| 11 Nov 2017 | 068 | 006 |
Bulletin
The solar activity is quiet as the solar disc remains spotless; no flares and no active regions have been recorded in past 24 h on the disc. The X-ray flux is expected to remain below C level.
No Earth directed Coronal Mass Ejections have been observed and the solar protons flux remained at background levels over the past 24 hours.
The Earth remained in the fast solar wind with a speed of about 600-650 km/s. On Nov 09 early morning the solar wind started to decrease slowly to reached the speed of 550 km/s. The interplanetary magnetic field magnitude has also slowly decreased from 7 nT to below 5 nT. The Bz component was fluctuating between -7 and 7 nT being mainly negative and is currently around -5 nT. The solar wind speed is expected to continue to decrease until it reaches its nominal level by tomorrow.
Due to the fast solar wind and the Bz component of the interplanetary magnetic field being manly southward, unsettle to disturb geomagnetic conditions were observed with local K Dourbes 2-5 and NOAA Kp 3-5. The geomagnetic conditions are expected to remain disturb as long as the Earth remains in the solar wind flow associated with the high speed stream coming from the coronal hole (that has crossed the central meridian on Nov 4). Minor geomagnetic storms cannot be excluded, especially if Bz component remains negative for long period of time.
Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 16 stations.Indices solaires pour 08 Nov 2017
| Nombre de Wolf, observé par Catania | 000 |
| Flux solaire à 10 cm | 068 |
| AK Chambon La Forêt | 053 |
| AK Wingst | 041 |
| Ap estimé | 049 |
| Nombre international de taches solaires estimé | 000 - Basé sur 11 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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