Affichage des archives de mercredi, 8 juillet 2015

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2015 Jul 08 1230 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
08 Jul 2015	135	004
09 Jul 2015	138	007
10 Jul 2015	141	013

Bulletin

NOAA 2381 has simplified considerably, with the other seven sunspot regions relatively small and quiet. Four C1 flares were recorded: three produced by NOAA 2381, and one by an active region at the southeast limb. A small filament eruption was observed near disk center around 08:00UT. Based on currently available imagery, no Earth-directed coronal mass ejections (CME) have been observed.

C-class flares are expected, with still a small chance on an isolated M-class flare.

Solar wind speed declined further and is now between 350 and 400 km/s. Bz varied between -3 and +3 nT. A sector boundary crossing is anticipated for 08-09 July. A positive equatorial coronal hole has passed the central meridian and may affect the earth environment starting 10 July.

Quiet to unsettled geomagnetic conditions are expected, with a small chance on an active episode.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 121, sur la base de 10 stations.

Indices solaires pour 07 Jul 2015

Nombre de Wolf, observé par Catania	120
Flux solaire à 10 cm	133
AK Chambon La Forêt	011
AK Wingst	///
Ap estimé	008
Nombre international de taches solaires estimé	120 - Basé sur 29 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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