Affichage des archives de lundi, 26 octobre 2015

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2015 Oct 26 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
26 Oct 2015	105	007
27 Oct 2015	103	007
28 Oct 2015	102	007

Bulletin

Solar activity has been low with the biggest flare of the period an isolated C2.1 flare from NOAA active region 2437. The most prominent region on disk, NOAA active region 2436 experienced some new opposite flux emergence in the trailing spot. Although some isolated C flaring is quite possible, we expect mainly quiet conditions. No Earth directed CMEs have been recorded. Solar wind speed remained elevated in the range of 400-500km/s. Around 13:50 UT a peak of around 12nT was measured in the total magnetic field after wich it declined steadily to a value of currently around 6.5 nT. Bz was mainly positive. The magnetic field phi angle settled steadily in a positive sector. Geomagnetic conditions were quiet to unsettled (both NOAA Kp and local K Dourbes 0-3). Solar wind conditions are expected to further restore towards nominal conditions. Associated quiet to unsettled geomagnetic conditions are expected.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 075, sur la base de 20 stations.

Indices solaires pour 25 Oct 2015

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	106
AK Chambon La Forêt	///
AK Wingst	007
Ap estimé	008
Nombre international de taches solaires estimé	064 - Basé sur 21 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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