Affichage des archives de lundi, 28 novembre 2016

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2016 Nov 28 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
28 Nov 2016	085	007
29 Nov 2016	084	006
30 Nov 2016	083	003

Bulletin

NOAA 2613, NOAA 2612 and Catania 65 (N05E40) are currently the most prominent sunspot regions on the solar disk. The northern portion of NOAA 2611 was the source of the strongest event of the period, a C1.4 flare at 08:01UT. The region produced also most of the low-level B-class flares, but has now rounded the northwest limb. No earth-directed coronal mass ejections (CMEs) were observed. The greater than 10MeV proton flux was at nominal levels.

Solar flare activity is expected to be at B-class level, with a slight chance on an isolated C-class flare.

Solar wind speed decreased from about 620 km/s to its current values near 450 km/s. Bz fluctuated between -3 nT and +3 nT. The interplanetary magnetic field was mostly directed away from the Sun. Solar wind parameters are expected to further evolve to nominal values as Earth is gradually exiting the high speed stream from the positive coronal hole.

The geomagnetic field was at quiet to unsettled levels, and is expected to remain so.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 045, sur la base de 17 stations.

Indices solaires pour 27 Nov 2016

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	083
AK Chambon La Forêt	015
AK Wingst	010
Ap estimé	010
Nombre international de taches solaires estimé	031 - Basé sur 17 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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