Affichage des archives de mercredi, 30 novembre 2016

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2016 Nov 30 1230 UTC

Prévisions SIDC

Éruptions solaires

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 2016	087	003
01 Dec 2016	088	003
02 Dec 2016	088	003

Bulletin

The strongest events of the period were two M1 flares peaking at resp. 17:23UT and 23:38UT. Both were produced by sunspot region NOAA 2615 (S05E45), with no obvious coronal dimming observed. A small delta in the middle portion of NOAA 2615 was the cause of all the flaring. This sunspot region is still quite small, but is gradually growing and has mostly kept its relatively complex magnetic configuration. NOAA 2612 and NOAA 2614 are decaying and were quiet. No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery from SOHO and STEREO-A. The greater than 10MeV proton flux was at nominal levels.

C-class flares are expected, with a chance on another M-class event from NOAA 2615.

Solar wind parameters are at nominal levels, with the wind speed near 350 km/s and Bz fluctuating between -3 nT and +4 nT. The interplanetary magnetic field was mostly directed away from the Sun. Solar wind parameters are expected to remain at nominal values.

The geomagnetic field was at quiet levels, with a single unsettled episode at Dourbes (21-24UT). Geomagnetic activity is expected to remain at quiet levels.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 062, sur la base de 21 stations.

Indices solaires pour 29 Nov 2016

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	086
AK Chambon La Forêt	010
AK Wingst	008
Ap estimé	006
Nombre international de taches solaires estimé	051 - Basé sur 30 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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