Affichage des archives de lundi, 28 mars 2016

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2016 Mar 28 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
28 Mar 2016	088	008
29 Mar 2016	088	011
30 Mar 2016	090	008

Bulletin

A C2.1 flare peaking at 02:28UT was observed in NOAA 2524. It was associated with a small coronal mass ejection (CME) which was not directed to Earth according to currently available coronagraphic imagery. The region also produced some jets and 3 B-class flares. NOAA 2526 produced 2 B-class flares during the second half of the period. A potentially active region may round the east limb later today. The eruption of a small filament was observed in the southwest solar quadrant between 05:30 and 06:10UT. Standing-by coronagraphic imagery to assess any CMEs.

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

Under the influence of the coronal hole stream, solar wind speed gradually increased from about 410 km/s at midnight to values near 500 km/s by 06:00-08:00UT. Initially, Bz varied wildly between -9 and +10 nT, whereas after midnight more steady periods were observed with Bz mostly between -5 and +7 nT. Geomagnetic conditions were quiet to unsettled, with an active interval reported in local K by Dourbes (15-18UT) and in Kp (03-06UT).

Mostly quiet to unsettled geomagnetic conditions are expected, with an active episode possible.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 023, sur la base de 14 stations.

Indices solaires pour 27 Mar 2016

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	088
AK Chambon La Forêt	026
AK Wingst	016
Ap estimé	016
Nombre international de taches solaires estimé	025 - Basé sur 24 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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