Affichage des archives de mercredi, 7 septembre 2016

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2016 Sep 07 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
07 Sep 2016	094	015
08 Sep 2016	095	008
09 Sep 2016	095	009

Bulletin

NOAA 2585 developed a small delta in its main trailing spot and produced a B6.6 flare peaking at 10:40UT, the strongest flare of the period. NOAA 2588 and a new region near the west limb (Catania 25) produced a minor B-class event each. The 40-degrees long filament in the northwest quadrant remained quiet. No earth-directed coronal mass ejections (CME) were observed.

C-class flares are possible, with a chance on an isolated M-class event.

Solar wind speed continued its gradual decline from about 520 km/s to its current value near 470 km/s. Bz fluctuated between -5 and +4 nT. The interplanetary magnetic field (IMF) was mostly directed away from the Sun (positive). Quiet to unsettled geomagnetic conditions were observed, with an isolated active episode during the 18-21UT interval.

Quiet to unsettled geomagnetic conditions are expected, with a chance on an active episode in response to the waning effects of the coronal hole high speed stream.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 061, sur la base de 27 stations.

Indices solaires pour 06 Sep 2016

Nombre de Wolf, observé par Catania	050
Flux solaire à 10 cm	092
AK Chambon La Forêt	026
AK Wingst	019
Ap estimé	019
Nombre international de taches solaires estimé	040 - Basé sur 26 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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