Affichage des archives de mercredi, 14 septembre 2016

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2016 Sep 14 1259 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
14 Sep 2016	086	008
15 Sep 2016	083	006
16 Sep 2016	081	007

Bulletin

Solar activity was very low in the past 24 hours. No flares, no Earth-directed CMEs were observed. Three active regions are presently observed on the visible side of the solar disc. Their photospheric magnetic field configuration is simple. Solar proton flux intensity is expected to lie within the background levels. Solar activity is expected to be low with some probability for C-class flares. The Solar wind speed measured by DSCOVR and ACE continued to decline till 280 km/s (at 02:30 UT today) then it increased till 350 km/s (at 12:00 UT today) as the result of the sector boundary crossing. Simultaneously the magnitude of the Interplanetary Magnetic Field (Bt) has increased from 6 nT to 9 nT, while Bz has been mainly negative and decreased till -7 nT. There are currently no significant coronal holes on the solar disk that may influence the Earth. In the past 24 hours, geomagnetic conditions have been quiet (K Dourbes between 1 and 3; NOAA Kp between 1 and 2). Geomagnetic activity is expected to remain the low over the next 24 hours.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 029, sur la base de 19 stations.

Indices solaires pour 13 Sep 2016

Nombre de Wolf, observé par Catania	047
Flux solaire à 10 cm	086
AK Chambon La Forêt	007
AK Wingst	004
Ap estimé	004
Nombre international de taches solaires estimé	038 - 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

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