Affichage des archives de lundi, 25 juillet 2016

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2016 Jul 25 1245 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Active conditions expected (A>=20 or K=4)

Moniteur de Flux de Proton

Warning condition (activity levels expected to increase, but no numeric forecast given)

	Flux de 10 cm	Ap
25 Jul 2016	082	016
26 Jul 2016	080	007
27 Jul 2016	078	007

Bulletin

One M class flare was recorded in the past 24 h: M1.9 peaking at 17:43 UT on July 25 from NOAA AR 2567. As this AR rotated over the west limb, the visible Sun became spotless and flaring activity greatly reduced. C-class flares can still be expected from this AR in the coming hours. Geomagnetic conditions were mostly active during past 24 h due to (most likely) a small ICME that reached ACE around 15:00 UT on July 24 (corresponding to a CME that erupted on July 20). Solar wind speed is currently at 450 km/s with interplanetary magnetic field magnitude of 5 nT. Active conditions are possible within 48h in response to the arrival of the high speed stream from a northern coronal hole, as well as of the low- probability glancing blow from the 23 July CME.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 24 stations.

Indices solaires pour 24 Jul 2016

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	082
AK Chambon La Forêt	033
AK Wingst	018
Ap estimé	018
Nombre international de taches solaires estimé	014 - 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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