Affichage des archives de dimanche, 30 novembre 2014

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2014 Nov 30 1226 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
30 Nov 2014	178	006
01 Dec 2014	176	006
02 Dec 2014	178	005

Bulletin

NOAA 2222 produced 3 C-class flares over the last 24 hours, NOAA 2221 and 2219 each 2. The latter group was also the source of the strongest event, a C6.5 flare peaking at 13:49UT. These three groups have all some mixed magnetic polarities. The other groups were quiet. C-class flaring is expected, with a small chance on low-level M-class flares. CACTus reported two wide angle CMEs. The first wide CME (94 degrees) became visible in LASCO/C2 on 28 November at 22:00UT, and may be related to the filament eruption earlier that day. The other wide CME (110 degrees) was first observed on 29 November at 00:12UT. However, this seems to be a superposition of at least 2 separate CMEs, with the part first visible at 02:24UT related to a prominence eruption around 02:00UT at the northeast limb. None of the observed CMEs has an Earth-directed component. Solar wind speed was stable between 360 and 430 km/s. The IMF is directed towards the Sun, with Bz mostly positive varying between 0 and +10 nT, and an occasional negative excursion to -7 nT. The geomagnetic field was quiet (K<3). Geomagnetic conditions are expected to be quiet to unsettled.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 101, sur la base de 05 stations.

Indices solaires pour 29 Nov 2014

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	177
AK Chambon La Forêt	008
AK Wingst	004
Ap estimé	003
Nombre international de taches solaires estimé	118 - Basé sur 21 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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