Affichage des archives de vendredi, 13 novembre 2015

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2015 Nov 13 1230 UTC

Prévisions SIDC

Éruptions solaires

Quiet conditions (<50% probability of C-class flares)

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
13 Nov 2015	102	008
14 Nov 2015	102	010
15 Nov 2015	101	012

Bulletin

Over the past 24 hours solar activity has been low, there has been one C-class flare recorded. An as yet unnamed region, located at S17E48 produced the largest flare, a C1.2 class flare, which peaked at 01:28 UT on 2015-Nov-13. NOAA Active Regions (ARs) 2448 and 2449 appear stable with small amounts of flux emergence. There were no Earth directed Coronal Mass Ejections (CMEs) observed over the past 24 hours. The solar wind speed has steadily declined over the past 24 hours, from around 500 km /s to around 400 km /s. The total magnetic field been slowly growing from around 2 nT to 10 nT over the past 24 hours. The Bz component has oscillated between -5 nT and +4 nT over the past 24 hours, but has been largely negative throughout this morning (2015-Nov-13). Geomagnetic conditions have been mainly quiet over the past 24 hours (NOAA Kp 1-2, local K Dourbes 1-2). A small coronal hole (W40S20) may increase solar wind speeds later today.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 051, sur la base de 19 stations.

Indices solaires pour 12 Nov 2015

Nombre de Wolf, observé par Catania	078
Flux solaire à 10 cm	104
AK Chambon La Forêt	009
AK Wingst	006
Ap estimé	004
Nombre international de taches solaires estimé	064 - Basé sur 26 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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