Affichage des archives de samedi, 10 janvier 2015

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2015 Jan 10 1231 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Warning condition (activity levels expected to increase, but no numeric forecast given)

	Flux de 10 cm	Ap
10 Jan 2015	155	007
11 Jan 2015	159	007
12 Jan 2015	163	013

Bulletin

Solar activity was low with only some low level C flaring from Catania regions 50 and 57 (NOAA regions 2257 and 2259). The strongest event was a C3.4 flare from Catania region 50 (NOAA 2257) peaking at 11:33UT. Catania region 50 (NOAA 2257) developed a delta in its trailer part. After midnight UT some new regions also appeared to emerge near N0W10 and near S7E5. The newly emerged region reported yesterday, Catania 50 received NOAA numbering 2260. And a new region (NOAA 2261) turned onto the disc in the southern hemisphere. Flaring at C level is expected to continue with a chance for M flaring. With potential strong flaring from Catania region 50 (NOAA 2257) located on the western hemisphere there is also a possibility for a proton event. No significant Earth directed CME's were reported. Solar wind speed continued to decline steadily over the period from values around 470 km/s to minima below 380 km/s. It is currently fluctuating around 420 km/s. Total magnetic field was relatively stable around 5nT at the start of the period but later increased to current values between 7 and 8 nT. Bz was fluctuating with negative peaks down to -6nT. Magnetic field Phi angle was positive throughout the period. Geomagnetic conditions have been quiet to unsettled (NOAA Kp 2-3, local K Dourbes 1-2). Solar wind conditions are expected to be mostly nominal in the coming days. Geomagnetic conditions are expected to be quiet to unsettled.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 085, sur la base de 03 stations.

Indices solaires pour 09 Jan 2015

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	151
AK Chambon La Forêt	015
AK Wingst	009
Ap estimé	008
Nombre international de taches solaires estimé	082 - Basé sur 08 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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