Affichage des archives de vendredi, 15 janvier 2016

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2016 Jan 15 1259 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
15 Jan 2016	103	006
16 Jan 2016	104	007
17 Jan 2016	101	007

Bulletin

After about two weeks without C-class flares, two C-class flares were reported this morning. The strongest one was C2.8 flare (peaked at 02:39 UT) which originated from the Catania sunspot group 7 (NOAA AR 2480). We expect isolated C-class flares in the coming hours (probability is > 50%). The large filament situated at the southern solar hemisphere erupted at about 22:15 UT on January 14. The filament eruption was associated with coronal dimming and partial halo CME. The CME was first seen in the SOHO LASCO C2 field of view at about 23:36 UT, had angular width of about 280 degrees and speed of about 250 km/s. This CME might arrive at the Earth late on January 18 or in the morning of January 19. The Earth is inside the slow solar wind speed (400 km/s) and the interplanetary magnetic field magnitude is about 4 nT. Geomagnetic conditions are quiet and we expect them to remain so in the coming hours.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 041, sur la base de 13 stations.

Indices solaires pour 14 Jan 2016

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	103
AK Chambon La Forêt	015
AK Wingst	008
Ap estimé	008
Nombre international de taches solaires estimé	040 - Basé sur 17 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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