Affichage des archives de dimanche, 11 mai 2014

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2014 May 11 1233 UTC

Prévisions SIDC

Éruptions solaires

Eruptive (C-class flares expected, probability >=50%)

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
11 May 2014	154	018
12 May 2014	156	015
13 May 2014	158	007

Bulletin

A handful of C flares have occurred over the last 24 hours originating from the Catania groups 42, 43, 47 (NOAA AR 2055, 2056, 2058 respectively) in the eastern hemisphere. The strongest one from Catania group 47 (NOAA AR 2058) peaking at 4:43 at C6.4 level. Some C level flaring activity is expected to continue with chances for M level flares. Between about 2 UT and 5 UT solar wind speed has increased from around 360 km/s to around 410 km/s. It has meanwhile fluctuated in the 380 km/s to 440 km/s range. Total magnetic field has increased over the period with maxima around 8.5 nT, but is presently slightly lower again around 7.5nT. Bz has been variable in the -7.8nT to +7.8nT range. These increased solar wind parameters are expected to persist for a further day under the influence of a coronal hole high speed stream. Geomagnetic conditions have been mostly unsettled but have reached active levels after midnight (both local K Dourbes and NOAA Kp reached 4). Geomagnetic conditions are expected to remain unsettled with possible active periods under the influence of the high speed stream.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 096, sur la base de 08 stations.

Indices solaires pour 10 May 2014

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	152
AK Chambon La Forêt	021
AK Wingst	012
Ap estimé	010
Nombre international de taches solaires estimé	090 - Basé sur 13 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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