Affichage des archives de lundi, 31 octobre 2016

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2016 Oct 31 1349 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
31 Oct 2016	076	013
01 Nov 2016	077	008
02 Nov 2016	076	008

Bulletin

Solar activity is low. No flares were observed. There is one NOAA active region (AR 2604) on the visible side of the solar disc with the simple magnetic configuration (beta). Catania decaying (51) sunspot group is also observed on the visible side of solar disc. Cactus detected a slow- moving narrow CME yesterday 30-Oct-2016 at 23:36 UT at the western limb of the solar disk, with no geoeffective effects expected. One big, but stable filament is approaching solar disk centre. Solar proton flux intensity is expected to lie within the background levels. Solar activity is expected to be low with small probability for C-class flares.

Earth remained under the decaying influence of the high speed stream from the coronal hole. Solar wind speed decreased from around 600 km/s to 490 km/s (DSCOVR). The interplanetary magnetic field (Bt) decreased from about 10 nT to +4nT. Bz oscillated mostly between -4 and +4 nT. The local K index at Dourbes was ranged between 2 and 4(planetary Kp index was also ranged between 2 and 4) during last 24 hours. The geo-environment is expected to remain under the gradually weakening influence of the CH HSS. Quiet conditions are expected.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 014, sur la base de 28 stations.

Indices solaires pour 30 Oct 2016

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	076
AK Chambon La Forêt	026
AK Wingst	020
Ap estimé	022
Nombre international de taches solaires estimé	014 - Basé sur 30 stations

Résumé des événements marquants

Données fournies par le Solar Influences Data analysis Center© - SIDC - Traité par SpaceWeatherLive

Toutes les heures sont indiquées en UTC

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