Affichage des archives de samedi, 14 juin 2014

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2014 Jun 14 1416 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
14 Jun 2014	153	010
15 Jun 2014	150	007
16 Jun 2014	147	009

Bulletin

The strongest flare reported in last 24 hours was the C9.0 flare (peaked at 20:17 UT) on June 13. The flare originated from the Catania sunspot group 81 (NOAA AR 2087) and was possibly associated with the CME (based on SDO/AIA data). More will be reported as soon as coronagraph data become available. No Earth directed CMEs were observed in last 24 hours. We expect C-class and possibly also M-class flares in the coming hours. The solar wind speed is currently 400 km/s. The interplanetary magnetic field magnitude has presently value of about 4 nT. During last 24 hours the Bz component of the interplanetary magnetic field is fluctuating with the short intervals of negative values of about -7 nT, which resulted in unsettled to active geomagnetic condition (K=3, 4 as reported by local stations Dourbes and Izmiran). The arrival of the fast flow associated with the small low latitude coronal hole (between S20 and S40) which reached the central meridian late on June 12, although not very probable, can be expected at the Earth in the morning of June 16. The arrival of the glancing blow from the CME-driven shock wave, associated with a partial halo CME from June 12, is possible but not very probable in the evening of June 15. The geomagnetic conditions are quiet to unsettled and expect to remain so in the coming hours.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 097, sur la base de 12 stations.

Indices solaires pour 13 Jun 2014

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	153
AK Chambon La Forêt	014
AK Wingst	007
Ap estimé	006
Nombre international de taches solaires estimé	128 - Basé sur 31 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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