Affichage des archives de dimanche, 13 septembre 2015

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2015 Sep 13 1332 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Minor storm expected (A>=30 or K=5)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
13 Sep 2015	099	010
14 Sep 2015	102	020
15 Sep 2015	104	014

Bulletin

Solar activity is low, with the last C-class flare reported on September 11 (C1.3 flare peaked at 21:37 UT). C-class flares, and possibly but not very probably also an isolated M-class flare can be expected from the NOAA AR 12415 and NOAA AR 12414 which maintained the beta-gamma configuration of its photospheric magnetic field. No Earth directed CMEs were observed in the last 24 hours.

The solar wind speed is about 480 km/s and the interplanetary magnetic field magnitude is currently 6 nT. Since 06 UT this morning the Bz component of the interplanetary magnetic field had two long southward intervals with the value of -4 nT. Currently the geomagnetic conditions are quiet. We expect such conditions to persist in the coming hours. The active to geomagnetic storm conditions are expected on September 14 due to arrival of the fast flow from the low latitude coronal hole at north solar hemisphere which has crossed central meridian on the mid-day of September 11.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 083, sur la base de 09 stations.

Indices solaires pour 12 Sep 2015

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	///
AK Chambon La Forêt	///
AK Wingst	///
Ap estimé	///
Nombre international de taches solaires estimé	083 - Basé sur 18 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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