Affichage des archives de dimanche, 1 mars 2015

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2015 Mar 01 1229 UTC

Prévisions SIDC

Éruptions solaires

Eruptive (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 Mar 2015	123	027
02 Mar 2015	125	017
03 Mar 2015	127	012

Bulletin

Solar activity was dominated by C-class flares from NOAA AR 2290 and 2994. The strongest was a C3.7 flare from NOAA AR 2290 peaking at 05:13 UT. More C-class flares are expected with chances of M-class flaring. Two full halo CMEs occurred on February 28. Both were backsided events. One starting at 04:36 UT (LASCO-C2) and the other at 21:36 UT. Additionally a CME directed to the NW was seen erupting at 15:12 UT, this is a frontside event coming from north of NOAA AR 2292. This CME was slow, it may arrive to the Earth on March 4 and cause at most minor storm conditions. Geomagnetic activity was dominated by a fast speed stream that caused active conditions with isolated minor storm periods starting at midnight on March 1 and still ongoing. The solar wind speed is around 500 km/s with magnetic fields intensities of 10 nT. More active conditions can be expected for today.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 054, sur la base de 14 stations.

Indices solaires pour 28 Feb 2015

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	123
AK Chambon La Forêt	035
AK Wingst	012
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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