Affichage des archives de samedi, 2 novembre 2013

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2013 Nov 02 1248 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
02 Nov 2013	145	006
03 Nov 2013	145	004
04 Nov 2013	145	005

Bulletin

The sun produced one M and three C flares during the past 24 hours. Catania sunspot region 29 (NOAA AR 11884) was responsible for the M6.3 flare peaking at 19:46 UT on November 1. Also Catania sunspot region 28 (NOAA AR 11885) produced a C8.2 flare with a peak at 4:46 UT on November 2. During the next 48 hours, more C flaring activity is expected with a slight chance for an M flare. Two CMEs of which one full halo CME were detected in coronographic imagery (LASCO/C2 as well as STEREO A and B), but first analysis indicates both are backsided and originate from old NOAA AR 11875. The full halo CME was first seen in LASCO/C2 at 5:00 UT and the second CME at 8:12 UT directed to the NW. Solar wind speed as observed by ACE is around 350 km/s. The magnitude of the interplanetary magnetic field (IMF) currently is stable near 5 nT. Geomagnetic activity is quiet to unsettled (local K at Dourbes and NOAA Kp between 0 and 3), which is expected to remain so within the next 48 hours.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 069, sur la base de 02 stations.

Indices solaires pour 01 Nov 2013

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	145
AK Chambon La Forêt	007
AK Wingst	005
Ap estimé	004
Nombre international de taches solaires estimé	085 - Basé sur 13 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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