Affichage des archives de mardi, 2 juillet 2013

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2013 Jul 02 1200 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
02 Jul 2013	115	007
03 Jul 2013	119	007
04 Jul 2013	121	007

Bulletin

Solar activity has been low in the past 24 hours with a few C flares observed. The strongest event was a C1.8 flare, taking place in NOAA AR 1785, on July 1st, 1516UT (peak time). We expect C flares in the 48 hours to occur essentially in AR 1785, raising the flaring forecast level to eruptive. A wide filament eruption occurred on the east limb, around 1930 UT, on July 1st. It was accompanied by a CME spotted by LASCO and COR coronagraphs, but with long data gaps. With the current available information, it is difficult to assess the true extent of the event and if it poses any risk. Based solely on its location, the risk for geomagnetic effects appears to be low. A second filament eruption took place on July 2nd, around 0000UT, near the central meridian. Due the data gap in coronagraph data, it is not known currently if a halo CME is associated with this event. We expect mostly quiet geomagnetic conditions for the next 48 hours. Current conditions in the interplanetary medium as measured by ACE are also very quiet.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 076, sur la base de 15 stations.

Indices solaires pour 01 Jul 2013

Nombre de Wolf, observé par Catania	081
Flux solaire à 10 cm	108
AK Chambon La Forêt	///
AK Wingst	010
Ap estimé	009
Nombre international de taches solaires estimé	048 - Basé sur 19 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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