Affichage des archives de samedi, 13 juin 2015

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2015 Jun 13 1231 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Active conditions expected (A>=20 or K=4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
13 Jun 2015	140	011
14 Jun 2015	140	010
15 Jun 2015	135	011

Bulletin

Solar activity was moderate with numerous C-class flares and one M1.3 flare. Catania sunspot region 79 (NOAA active region 2360 ) was the main responsible region. In addition Catania region 87 (NOAA AR 2367) produced a few lower C-class flares. Catania regions 79 and 83 (NOAA AR 2366) retain their beta-gamma complexity, while Catania regions 79 and 87 have grown. There are a few new (yet unnumbered) sunspot regions emerging that will be monitored. No Earth-directed CME were observed.

Solar wind was slightly disturbed due to arrival of a weak transient, probably related to the June 9 CME. The magnitude of the interplanetary magnetic field (IMF) started to increase at 12:30 UT from 5 to 11 nT, peaking in the time slot 20:15-21:00 UT and then decreased again. Solar wind speed was variable with values in the range 460-540 km/s. Geomagnetic conditions were quiet to unsettled (K up to 3) at local (Dourbes) and global (NOAA planetary) levels. Geomagnetic conditions are mainly expected to be quiet, but might become enhanced upon the arrival of a coronal hole high speed stream.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 077, sur la base de 17 stations.

Indices solaires pour 12 Jun 2015

Nombre de Wolf, observé par Catania	128
Flux solaire à 10 cm	137
AK Chambon La Forêt	015
AK Wingst	008
Ap estimé	008
Nombre international de taches solaires estimé	077 - Basé sur 29 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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