Affichage des archives de lundi, 1 février 2016

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2016 Feb 01 1231 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Active conditions expected (A>=20 or K=4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
01 Feb 2016	098	014
02 Feb 2016	098	013
03 Feb 2016	098	007

Bulletin

There are currently three active regions (AR) on the solar disk, all having a beta classification. Only minor solar activity was produced, with a few B-class flares and a C1.6 flare. ARs 2489 and 2490 and a region (N15), currently rounding the East limb, have shown low levels of activity. No Earth directed Coronal Mass Ejections (CMEs) were observed. Solar activity is expected to remain low over the next period with a high probability of (low-level) C-class flares.

The solar wind speed remained at low values between 260 and 340 km/s. The total magnetic field magnitude was maximally at 11 nT. The Bz component was largely negative (to -8nT), before it turned positive near 8 UT.

Geomagnetic conditions were mainly quiet to unsettled (K=2-3, both local Dourbes K an NOAA estimated Kp), with one time slot of active levels (K=4) near UT midnight as a result of the period of negative Bz values. A high- speed stream, emanating from a positive polar coronal positioned in the Western hemisphere of the Sun, may result in enhanced solar wind speeds.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 045, sur la base de 08 stations.

Indices solaires pour 31 Jan 2016

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	101
AK Chambon La Forêt	023
AK Wingst	015
Ap estimé	013
Nombre international de taches solaires estimé	/// - Basé sur /// 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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