Affichage des archives de jeudi, 3 décembre 2015

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2015 Dec 03 1230 UTC

Prévisions SIDC

Éruptions solaires

Quiet conditions (<50% probability of C-class flares)

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
03 Dec 2015	093	007
04 Dec 2015	093	010
05 Dec 2015	094	011

Bulletin

Solar activity has been low over the past 24 hours. The largest flare was a C1.2 class flare. NOAA Active Region (AR) 2458 (Cao Beta) has produced most of the activity, including the C1.2 flare peaking at 06:28 UT this morning. AR 2458 still shows some evidence of flux emergence and has the potential to produce more activity, but will pass over the West solar limb soon. There is currently an AR approaching the East limb, which may have the potential to increase activity in the coming days. An eruption was observed off of the Southeast limb around 18:00 UT on 2015-Nov-02, but this was back-sided and unlikely to interact with the Earth. No Earth directed CMEs have been observed in the past 24 hours. Solar activity is expected to remain low. The solar wind speed has fluctuated around 425 km /s over the past 24 hours. The total magnetic field has remained at 6 nT, and the Bz component has fluctuated between +5 and -5 nT. Geomagnetic conditions ranged between quiet and moderate (NOAA Kp 1-3, local K Dourbes 0-3). A large positive polar coronal hole, with a section extending to low latitudes, is currently located near central solar longitudes, and may increase solar wind and geo- activity conditions in 3-4 days. The solar wind conditions are expected to be at background levels over the next couple of days, with a small perturbation generated by an eruption on 2015-Dec-01.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 036, sur la base de 13 stations.

Indices solaires pour 02 Dec 2015

Nombre de Wolf, observé par Catania	061
Flux solaire à 10 cm	095
AK Chambon La Forêt	014
AK Wingst	010
Ap estimé	009
Nombre international de taches solaires estimé	043 - Basé sur 23 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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