Affichage des archives de mardi, 4 mars 2014

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2014 Mar 04 1228 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
04 Mar 2014	159	004
05 Mar 2014	159	004
06 Mar 2014	159	007

Bulletin

There are currently 8 sunspot regions on the visible solar disk, with small delta's observed in NOAA 1990 and in the trailing portion of NOAA 1991. The strongest event of the past 24 hours was an impulsive M1-flare peaking at 15:58UT in NOAA 1989, after which this sunspot group decayed significantly. Most of the C-class flaring occurred in active region NOAA 1986 which has now fully rotated behind the northwest limb. The CMEs associated with these flares were not Earth-directed. Active flaring conditions are expected, with an M-class flare most likely from active regions NOAA 1990 and 1991. Solar wind speed has been varying between 350-360 km/s, and Bz between -5nT and +6nT. A coronal hole on the northern hemisphere is approaching the central meridian and might produce active geomagnetic conditions from late 7 March onwards. Geomagnetic conditions have been quiet and are expected to remain so.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 099, sur la base de 12 stations.

Indices solaires pour 03 Mar 2014

Nombre de Wolf, observé par Catania	191
Flux solaire à 10 cm	161
AK Chambon La Forêt	///
AK Wingst	006
Ap estimé	006
Nombre international de taches solaires estimé	123 - Basé sur 17 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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