Affichage des archives de mercredi, 18 juin 2014

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2014 Jun 18 1245 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
18 Jun 2014	112	011
19 Jun 2014	112	005
20 Jun 2014	115	005

Bulletin

NOAA ARs 2087 and 2089 have beta-gamma configuration of their photospheric magnetic field. The strongest flare of the past 24 hours was the C4.0 flare peaking at 03:31 UT today in the NOAA AR 2087. The flare was associated with coronal dimmings and a post-eruptive arcade observed by SDO/AIA, and also probably with a narrow CME first seen in the SOHO/LASCO C2 field of view at 07:48 UT. The CME is not expected to arrive at the Earth. We expect further flaring activity on the C-level, in particular from NOAA ARs 2087 and 2093, with an M-class flare being possible but not very likely. An interplanetary sector boundary was crossed around 17:00 UT yesterday. The interplanetary magnetic field (IMF) magnitude increased up to 10 nT, but it did not exhibit prolonged intervals of strongly negative north-south component Bz. The geomagnetic conditions were quiet to unsettled. The Earth is currently inside a slow (around 400 km/s) solar wind flow with slightly elevated (around 6 nT) IMF magnitude. The geomagnetic conditions are quiet and are expected to remain so.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 085, sur la base de 14 stations.

Indices solaires pour 17 Jun 2014

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	114
AK Chambon La Forêt	///
AK Wingst	012
Ap estimé	010
Nombre international de taches solaires estimé	067 - Basé sur 16 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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