Affichage des archives de mardi, 14 janvier 2020

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2020 Jan 14 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
14 Jan 2020	071	007
15 Jan 2020	071	009
16 Jan 2020	070	006

Bulletin

Solar activity is very low and there were no flares reported during last 24 hours. We expect such a low level of flaring activity to persist in the coming hours. However, the eruption was observed at about 09:55 UT this morning from the decaying active region (Catania sunspot group 27) situated close to the disc center. Although no flares were reported the well-defined coronal dimming and the associated EIT wave indicate existence of the associated CME. As the eruption appeared close to the solar disc center, the associated CME is possibly Earth directed. More will be reported when coronagraph data become available. The solar protons remained at the background level.

Earth is still within the slow solar wind with the speed of about 290 km/s and the interplanetary magnetic field magnitude is 5 nT. The solar wind originating from the positive polarity coronal hole (reached the central meridian on January 10), might arrive to Earth in the coming hours and induce the unsettled conditions. Presently geomagnetic conditions are quiet 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 11 stations.

Indices solaires pour 13 Jan 2020

Nombre de Wolf, observé par Catania	000
Flux solaire à 10 cm	072
AK Chambon La Forêt	///
AK Wingst	003
Ap estimé	002
Nombre international de taches solaires estimé	000 - Basé sur 22 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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