Affichage des archives de dimanche, 12 juillet 2015

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2015 Jul 12 1230 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Active conditions expected (A>=20 or K=4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
12 Jul 2015	115	015
13 Jul 2015	112	009
14 Jul 2015	110	006

Bulletin

NOAA 2385 (Catania 11) produced the only flare of the period: a C1 flare peaking at 18:36UT. The other sunspot regions were quiet. Old active region NOAA 2371 is making its reappearance from behind the east limb. No obvious Earth-directed coronal mass ejections (CME) were observed.

There remains a chance on an isolated C-class flare.

Solar wind speed is gradually declining and currently varying between 570-600 km/s. Bz oscillated between -8 and +7 nT. The interplanetary magnetic field was mostly directed away from the Sun. Quiet to active geomagnetic conditions were observed.

Quiet geomagnetic conditions are expected with a chance on an active episode, as the influence of the high speed stream of the coronal hole is gradually subsiding.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 081, sur la base de 11 stations.

Indices solaires pour 11 Jul 2015

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	120
AK Chambon La Forêt	///
AK Wingst	024
Ap estimé	027
Nombre international de taches solaires estimé	094 - Basé sur 27 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

<< Aller à l'aperçu quotidien