Affichage des archives de samedi, 8 mars 2014

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2014 Mar 08 1256 UTC

Prévisions SIDC

Éruptions solaires

Eruptive (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 Mar 2014	146	005
09 Mar 2014	142	021
10 Mar 2014	140	008

Bulletin

There are currently 7 sunspot groups visible, all are small and have a simple magnetic configuration. Five C-class flares were recorded. The strongest was a C3-flare peaking at 00:07UT in a new region near the southeast limb. The two most notable CMEs detected over the last 24 hours, seen first by LASCO/C2 at resp. 12:12UT and 13:36UT, are related to backside events and have no Earth-directed component. Eruptive flaring conditions are expected. Over the last 24 hours, solar wind speed has gradually decreased to values near 370-400 km/s, with Bz varying between -4nT and +4nT. A small coronal hole on the southern hemisphere may reach the central meridian (CM) early on 9 March with possible geomagnetic influences on 12-13 March. Geomagnetic conditions have been quiet and are expected to remain so until the arrival of the coronal hole solar wind stream (CM passage 5 March). This may result in episodes of active geomagnetic conditions starting later today or tomorrow 9 March.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 085, sur la base de 17 stations.

Indices solaires pour 07 Mar 2014

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	148
AK Chambon La Forêt	///
AK Wingst	003
Ap estimé	003
Nombre international de taches solaires estimé	094 - 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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