Affichage des archives de vendredi, 4 juillet 2014

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2014 Jul 04 1231 UTC

Prévisions SIDC

Éruptions solaires

Eruptive (C-class flares expected, probability >=50%)

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
04 Jul 2014	186	007
05 Jul 2014	193	004
06 Jul 2014	199	004

Bulletin

There are currently 9 sunspot groups visible, with NOAA 2104 and 2109 the largest and magnetically most complex regions. Only 1 C-class flare was recorded. This C2.4 flare peaked at 05:37UT and had its source in NOAA 2109. A long filament near the west limb became unstable and mostly disappeared overnight (3-4 July), however no obvious CME was observed. Some subflaring activity in the long filament near NOAA 2106 was observed around 09:30UT. C-class flares are expected, with a chance on a strong flare from especially NOAA 2104 and 2109. Solar wind speed remained fairly constant around 350 km/s. Bz was mostly negative between 21:00 and 08:00UT, and positive for the rest of the period. Its value varied between -5 and +4 nT. Quiet geomagnetic conditions were observed and are expected to remain so.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 131, sur la base de 16 stations.

Indices solaires pour 03 Jul 2014

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	178
AK Chambon La Forêt	010
AK Wingst	006
Ap estimé	006
Nombre international de taches solaires estimé	133 - 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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