Affichage des archives de samedi, 22 novembre 2014

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2014 Nov 22 1207 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
22 Nov 2014	161	010
23 Nov 2014	159	012
24 Nov 2014	157	012

Bulletin

NOAA ARs 2209 and 2216 (Catania numbers 9 and 14 respectively) have delta-spots in their trailing parts and continue to produce C-class flares. The strongest flare of the past 24 hours was the C8.1 flare peaking at 01:01 UT today in the NOAA AR 2209 (Catania number 9). We expect flaring activity on the C-level, possibly with an isolated M-class flare. A long filament in the northern hemisphere is now situated across the solar central meridian. Its eruption may lead to an Earth-directed CME. The Earth is currently inside a slow (around 370 km/s) solar wind flow with slightly elevated (7-8 nT) interplanetary magnetic field magnitude. Due to low solar wind speed, the geomagnetic conditions remained at the quiet to unsettled level (K < 4), with one interval of active conditions (K = 4) reported only by IZMIRAN yesterday evening. The geomagnetic conditions are expected to stay at the quiet to unsettled level (K < 4), possibly with isolated intervals of active conditions (K = 4).

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 060, sur la base de 14 stations.

Indices solaires pour 21 Nov 2014

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	163
AK Chambon La Forêt	023
AK Wingst	015
Ap estimé	016
Nombre international de taches solaires estimé	045 - 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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