Affichage des archives de jeudi, 11 octobre 2018

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2018 Oct 11 1230 UTC

Prévisions SIDC

Éruptions solaires

Quiet conditions (<50% probability of C-class flares)

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
11 Oct 2018	070	008
12 Oct 2018	070	007
13 Oct 2018	070	007

Bulletin

A new Active Region or plage is rotating around the East limb and has produced a B1.7 flare in the past 24 hours. The chance for a C flare in the next 24 hours is estimated at 3%.

No Earth-directed Coronal Mass Ejections (CMEs) were observed in available coronagraphic imagery.

The greater than 10 MeV proton flux was at nominal levels in the past 24 hours, and is expected to stay at nominal levels in the next 24 hours.

Solar wind speed near Earth as registered by DSCOVR varied between about 455 and 535 km/s in the past 24 hours. The Interplanetary Magnetic Field (IMF) was predominantly directed away from the Sun and its magnitude varied between about 1 and 8 nT. Bz was below -5 nT around 16-17 UT and 18-19 UT on October 10.

Unsettled to minor storm geomagnetic conditions (K Dourbes between 3 and 5; NOAA Kp between 3 and 5) were registered in the past 24 hours. K Dourbes was equal to 5 between 18h and 24h UT on October 10, coinciding with a negative excursion of Bz. Quiet to unsettled levels (K Dourbes < 4) are expected on October 11, 12 and 13, with a chance for active intervals (K Dourbes = 4) on October 11.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 11 stations.

Indices solaires pour 10 Oct 2018

Nombre de Wolf, observé par Catania	000
Flux solaire à 10 cm	070
AK Chambon La Forêt	029
AK Wingst	017
Ap estimé	018
Nombre international de taches solaires estimé	000 - Basé sur 32 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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