Affichage des archives de vendredi, 19 août 2016

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2016 Aug 19 1230 UTC

Prévisions SIDC

Éruptions solaires

Quiet conditions (<50% probability of C-class flares)

Géomagnétisme

Active conditions expected (A>=20 or K=4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
19 Aug 2016	082	005
20 Aug 2016	081	017
21 Aug 2016	079	006

Bulletin

Solar activity was very low in the past 24 hours. Only one B1.3 flare was observed yesterday 18-Aug-2016 (peaking at 14:14 UT). Three additional active regions are presently observed on the visible side of the solar disc. Their photospheric magnetic field configuration is simple (beta and alpha configuration). No Earth-directed CMEs were observed. Solar proton flux intensity is expected to lie within the background levels. Solar activity is expected to be low with small probability for C-class flares. Solar wind speed measured by DSCOVR varied between 390 and 350 km/s, while the magnitude of the Interplanetary Magnetic Field (Bt) fluctuated between 4 and 6 nT. Geomagnetic conditions have been quiet in the past 24 hours (K Dourbes between 1 and 3; NOAA Kp between 1 and 2). Geomagnetic activity is expected to continue at very low levels today (19-08-2016). Active to minor geomagnetic storm conditions (K Dourbes = 3-4) are possible from 20-Aug-2016 due to the expected arrival of a high speed stream associated with a coronal hole.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 051, sur la base de 19 stations.

Indices solaires pour 18 Aug 2016

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	082
AK Chambon La Forêt	009
AK Wingst	010
Ap estimé	008
Nombre international de taches solaires estimé	048 - Basé sur 31 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

<< Aller à l'aperçu quotidien