Affichage des archives de vendredi, 17 octobre 2014

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2014 Oct 17 1210 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
17 Oct 2014	139	008
18 Oct 2014	139	007
19 Oct 2014	139	007

Bulletin

During the past 24 hours, one M flare and four C flares were released by the backside region close to the east limb that produced both M flares on October 14 (probably this region is the return of M-flaring region NOAA AR 2173). The M4.3 flare peaked at 13:03 UT on October 16. In the next 48 hours, M flares are possible, especially from the region near the east limb that has produced the three M flares. Over the last 24 hours the solar wind speeds observed by ACE varied between about 380 and 500 km/s, with current speed values around 435 km/s. The magnitude of the Interplanetary Magnetic Field (IMF) varied between 1.5 and 7.5 nT, with current values around 5.5 nT. Geomagnetic conditions during the last 24 hours were quiet to active (K Dourbes between 1 and 4; NOAA Kp between 1 and 3). Quiet geomagnetic levels (K Dourbes < 4) are expected on October 17, 18 and 19.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 044, sur la base de 12 stations.

Indices solaires pour 16 Oct 2014

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	139
AK Chambon La Forêt	018
AK Wingst	008
Ap estimé	009
Nombre international de taches solaires estimé	050 - Basé sur 17 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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