Affichage des archives de mercredi, 17 juin 2015

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2015 Jun 17 1230 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
17 Jun 2015	136	008
18 Jun 2015	135	007
19 Jun 2015	134	007

Bulletin

Solar activity was low. Several low level C flares were recorded from Catania group 92 (NOAA 2371). The largest was peaking at C3.2 level at 00:01UT. Catania group 92 (NOAA 2371) and 87 (NOAA 2367) are the most likely sources of flaring activity. Further C level flaring is expected with a slight chance for M class flares. No Earth directed CMEs were recorded. In the decaying phase of the high speed stream, solar wind speed and total magnetic field saw a slight increase around 18:00 UT. Total magnetic field picked up to around 9 nT and speed varied around 560 km/s for a while before resuming their decline. Bz was variable but pronounced negative since midnight, though remaining above -6.5 nT. Geomagnetic conditions continued to be quiet to unsettled (NOAA Kp 2-3) with an isolated local period of active conditions (K Dourbes 1-4). The high speed stream influence is expected to further decline with quiet to unsettled geomagnetic conditions as a consequence.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 066, sur la base de 15 stations.

Indices solaires pour 16 Jun 2015

Nombre de Wolf, observé par Catania	093
Flux solaire à 10 cm	136
AK Chambon La Forêt	018
AK Wingst	014
Ap estimé	013
Nombre international de taches solaires estimé	056 - Basé sur 20 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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