Affichage des archives de lundi, 20 janvier 2014

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2014 Jan 20 1305 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
20 Jan 2014	131	003
21 Jan 2014	134	009
22 Jan 2014	137	003

Bulletin

Seven sunspot groups were reported by NOAA today. Three more groups still have no NOAA numbers. Two of these unnumbered groups rapidly emerged yesterday in the SW and SE quadrants of the Sun, and another group appeared from behind the east solar limb. No flares were observed in any of the unnumbered groups yet, although the dynamic sunspot group in the SE quadrant may become flare-productive. All the flares in the past 24 hours occurred in the NOAA AR 1959, the strongest of them being the C3.4 flare peaking at 02:20 UT today. We expect further flaring activity on the C-level, with M-class flares possible but unlikely. The Earth is currently inside a slow (around 300 km/s) solar wind flow with weak to average (3-4 nT) interplanetary magnetic field magnitude. We expect quiet geomagnetic conditions in the coming hours. Tomorrow we expect the arrival of a fast flow from a low-latitiude coronal hole in the northern hemisphere. Active geomagnetic conditions will be possible.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 104, sur la base de 06 stations.

Indices solaires pour 19 Jan 2014

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	128
AK Chambon La Forêt	002
AK Wingst	001
Ap estimé	001
Nombre international de taches solaires estimé	076 - Basé sur 15 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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