Affichage des archives de vendredi, 23 octobre 2015

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2015 Oct 23 1230 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Minor storm expected (A>=30 or K=5)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
23 Oct 2015	115	006
24 Oct 2015	110	012
25 Oct 2015	105	016

Bulletin

Solar activity was low without any significant flare. NOAA active region 2436 remains the most complex region, but was inactive. The > 10 MeV proton flux was enhanced from 23:00 UT on, but remained well below the event threshold. This disturbance probably was due to the long duration flare of October 22. Flaring at the C-level is expected. No Earth-directed CMEs were observed in current available coronagraphic images.

The solar wind speed was at 400 km/s till 22UT, when the speed became variable between 400 and 500 km/s. The interplanetary magnetic field was at a constant magnitude around 5 nT. Quiet (K<3) to unsettled (K=3) geomagnetic conditions were observed, which are expected to continue for the next 24 hours. From the second half of October 24 the solar wind might be disturbed due to a glancing blow from the October 22 CME. This can result in (at maximum) minor storm (K=5) conditions.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 090, sur la base de 08 stations.

Indices solaires pour 22 Oct 2015

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	121
AK Chambon La Forêt	012
AK Wingst	006
Ap estimé	005
Nombre international de taches solaires estimé	095 - Basé sur 19 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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