Affichage des archives de dimanche, 25 octobre 2015

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2015 Oct 25 1230 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
25 Oct 2015	105	008
26 Oct 2015	100	011
27 Oct 2015	095	008

Bulletin

Solar activity was low with two lower C-class flares. The source region was NOAA active region (AR) 2434, which is close to the west limb. NOAA AR 2436 became slightly more complex in its trailing part, while the other regions were stable. Flares at the C-level are expected. No Earth- directed CMEs were observed.

A shock was observed in the solar wind around 18:30 UT on October 24. Solar wind speed, density and temperature made a jump. The magnitude of the Interplanetary Magnetic Field (IMF) has reached a magnitude of 14 nT with a mainly positive Bz component varying from -9 to 10 nT. Solar wind speed reached 540 km/s. The shock is probably related to the October 22 CME. Geomagnetic conditions are quiet (K<3) to unsettled (K=3), which is mainly expected to continue.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 063, sur la base de 14 stations.

Indices solaires pour 24 Oct 2015

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	106
AK Chambon La Forêt	///
AK Wingst	011
Ap estimé	011
Nombre international de taches solaires estimé	079 - Basé sur 15 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

<< Aller à l'aperçu quotidien