Affichage des archives de jeudi, 8 septembre 2016

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2016 Sep 08 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
08 Sep 2016	092	016
09 Sep 2016	092	008
10 Sep 2016	091	011

Bulletin

NOAA 2585 has a small delta in its main trailing spot and produced several B-class events, the strongest a B8.3 flare peaking at 04:47UT. The two other regions (NOAA 2588 and Catania 28) were quiet. The 40-degrees long filament in the northwest quadrant remained quiet. Currently available coronagraphic imagery revealed no earth-directed coronal mass ejections (CME).

A C-class flare is possible, with a small chance on an isolated M-class event.

Solar wind speed varied mostly between 450 and 510 km/s. Bz fluctuated between -5 and +4 nT. The interplanetary magnetic field (IMF) was predominantly directed away from the Sun (positive). Quiet to unsettled geomagnetic conditions were observed, with an active episode during the 12-15UT interval (Dourbes) and during the 03-06UT interval (Kp).

Quiet to unsettled geomagnetic conditions are expected, with still an active episode possible. There's a small chance that high speed streams from two polar coronal hole extensions (one at +30 degrees and another at -35 degrees) may influence the earth environment from 11 September onwards.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 051, sur la base de 22 stations.

Indices solaires pour 07 Sep 2016

Nombre de Wolf, observé par Catania	091
Flux solaire à 10 cm	093
AK Chambon La Forêt	020
AK Wingst	014
Ap estimé	015
Nombre international de taches solaires estimé	061 - Basé sur 34 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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