Affichage des archives de mercredi, 15 janvier 2020

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2020 Jan 15 1231 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
15 Jan 2020	072	008
16 Jan 2020	072	008
17 Jan 2020	071	006

Bulletin

The visible side of the solar disc is presently spotless. There were no flares reported during last 24 hours and we do not expect flaring activity in the coming hours. The eruption reported yesterday (observed at about 09:55 UT on January 14), from the decaying active region (Catania sunspot group 27) situated at the moment of eruption close to the disc center, was associated with the on- disc signatures of the CME, i.e. coronal dimming and EUV wave. Presently there are only few available coronagraph images from STEREO/COR2 coronagraph and they show presence of the weak and rather narrow CME with the speed of about 200 km/s. The CME is possibly Earth-directed, and it’s arrival, although not very probable, could be late on January 19. During last 24 hours solar protons remained at the background level.

Earth is within the slow solar wind with the speed of 340 km/s and the interplanetary magnetic field magnitude is about 2 nT. Presently geomagnetic conditions are quiet to unsettled and we expect them to stay so in the coming hours.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 13 stations.

Indices solaires pour 14 Jan 2020

Nombre de Wolf, observé par Catania	000
Flux solaire à 10 cm	072
AK Chambon La Forêt	///
AK Wingst	002
Ap estimé	002
Nombre international de taches solaires estimé	000 - Basé sur 15 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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