Affichage des archives de dimanche, 30 juin 2013

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2013 Jun 30 1259 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Minor storm expected (A>=30 or K=5)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
30 Jun 2013	102	021
01 Jul 2013	105	030
02 Jul 2013	107	007

Bulletin

Solar activity has been eruptive during the past 24 hours, featuring two low C flares from NOAA 11778 and NOAA 11781. More C flares are possible within the next 48 hours, with a slight chance for an M flare, especially from NOAA AR 11778, 11780 and 11781. Solar wind density increased around 5:00 UT on June 29, while wind speed and temperature began to rise, marking the arrival of the expected coronal hole high speed stream. Meanwhile, solar wind speed has increased from about 360 km/s to 500 km/s. In the past 24 hours, geomagnetic activity has been at quiet to active levels (K Dourbes between 1 and 4; NOAA Kp between 2 and 4). A rise to minor storm levels is possible on June 30 and the first half of July 1st, due to an expected glancing blow from the CME of 02:00 UT on June 28. Quiet to active levels are likely in the second half of July 1st, and a return to quiet levels is expected on July 2nd.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 050, sur la base de 14 stations.

Indices solaires pour 29 Jun 2013

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	100
AK Chambon La Forêt	037
AK Wingst	035
Ap estimé	048
Nombre international de taches solaires estimé	045 - Basé sur 22 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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