Affichage des archives de samedi, 8 juin 2013

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2013 Jun 08 1247 UTC

Prévisions SIDC

Éruptions solaires

Active (M-class flares expected, probability >=50%)

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
08 Jun 2013	109	013
09 Jun 2013	108	011
10 Jun 2013	106	008

Bulletin

Solar activity is low, with only three C-class flares and one M-class flare detected in last 24 hours. The M5.9 flare peaking at 22:49 UT on June 07 originated from the Catania sunspot group 96 (NOAA AR 1765) situated at that moment at the west solar limb, and was associated with a CME. From the currently available data it seems that the bulk of the CME mass was directed mostly southward of the Sun-Earth line and it is therefore not probable that the CME will arrive at the Earth. Fast growing Catania sunspot group 96 (NOAA AR 1765) which currently has beta-gamma configurations of its photospheric magnetic field, has a significant potential to produce a C-class flares, and possibly also M-class flares. The interplanetary magnetic field magnitude is about 4 nT, and the solar wind speed is currently 450 km/s. The arrival of the fast flow from the small equatorial coronal hole is expected today without significant geomagnetic impact. A CME-driven shock wave associated with the M1.3 flare on June 05, might be expected on June 09 producing at most unsettled geomagnetic conditions. We expect quiet to unsettled geomagnetic conditions during following 48 hours.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 017, sur la base de 16 stations.

Indices solaires pour 07 Jun 2013

Nombre de Wolf, observé par Catania	066
Flux solaire à 10 cm	110
AK Chambon La Forêt	021
AK Wingst	025
Ap estimé	033
Nombre international de taches solaires estimé	032 - Basé sur 21 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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