Affichage des archives de lundi, 23 mai 2016

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2016 May 23 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
23 May 2016	095	005
24 May 2016	094	005
25 May 2016	093	007

Bulletin

The only solar flare observed during the last 24 hours was a B3.0 event peaking at 08:18UT and produced by NOAA 2546. This active region remains the sole sunspot group currently visible. A small filament eruption was observed on 23 May around 06:30UT (N18E25). No earth-directed coronal mass ejections (CMEs) were observed.

Quiet conditions are expected to continue.

Solar wind speed declined from 600 to 500 km/s. Bz varied mostly between -4 and +4 nT, with the Interplanetary Magnetic Field directed away from the Sun. A small negative coronal hole (CH) on the southern hemisphere is transiting the central meridian. Quiet geomagnetic conditions were observed.

Quiet to unsettled geomagnetic conditions are expected as a result of the gradually waning effects of the CH wind stream.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 017, sur la base de 15 stations.

Indices solaires pour 22 May 2016

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	097
AK Chambon La Forêt	011
AK Wingst	009
Ap estimé	008
Nombre international de taches solaires estimé	021 - Basé sur 23 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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