Affichage des archives de samedi, 16 avril 2016

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2016 Apr 16 1232 UTC

Prévisions SIDC

Éruptions solaires

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
16 Apr 2016	115	006
17 Apr 2016	115	007
18 Apr 2016	115	013

Bulletin

NOAA AR 2529 is now a beta-gamma region and released one C flare in the past 24 hours: a C4.1 flare which peaked at 14:30 UT on April 15. More C flares (probability 75%) are expected in the next 24 hours, with a slight chance (probability 15%) for an M flare, especially from AR 2529. Solar wind speed was near 360 km/s until around 04:30 UT on April 16, when it started rising till it reached a plateau of about 440 km/s around 05:30 UT. The magnitude of the Interplanetary Magnetic Field (IMF) varied between 2 and 11 nT. Over the past 24 hours, geomagnetic conditions have been quiet to unsettled (K Dourbes between 0 and 3; NOAA Kp between 1 and 3). Quiet to unsettled geomagnetic levels (K Dourbes < 4) are expected on April 16, 17 and the first half of April 18. Active to minor storm periods are possible in the second half of April 18, when a high speed stream associated with a positive coronal hole is expected to arrive.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 046, sur la base de 16 stations.

Indices solaires pour 15 Apr 2016

Nombre de Wolf, observé par Catania	073
Flux solaire à 10 cm	112
AK Chambon La Forêt	010
AK Wingst	010
Ap estimé	010
Nombre international de taches solaires estimé	047 - Basé sur 23 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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