Affichage des archives de lundi, 8 juin 2015

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2015 Jun 08 1230 UTC

Prévisions SIDC

Éruptions solaires

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
08 Jun 2015	130	029
09 Jun 2015	130	008
10 Jun 2015	130	007

Bulletin

There are currently eight sunspot regions on the visible disk. Flaring activity was restricted to two C1 flares, originating from Catania sunspot regions 79 and 81 (NOAA active regions 2360 and 2362). C-class flares are expected from these regions, with some slight chance for flares at the M-level. No Earth-directed CMEs were observed.

Solar wind observations indicate the arrival of the expected arrival of the negative polarity coronal hole high speed stream. Solar wind speed started to rise around 0:00 UT from 400 km/s and reached 700 km/s. The magnitude of the magnetic field peaked at 23 nT around 5:00 UT, but has now declined to 6 nT. The north-south component Bz was fluctuating with values down to -21 nT. Moderate geomagnetic storm conditions were recorded at planetary level (NOAA Kp=6 in the 09-12UT slot), while at local level (at Dourbes) K currently reaches 5. Further periods of active geomagnetic conditions are to be expected for the next 24 hours subject to the orientation and magnitude of the magnetic field, before returning to quiet levels again.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 091, sur la base de 19 stations.

Indices solaires pour 07 Jun 2015

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	137
AK Chambon La Forêt	026
AK Wingst	008
Ap estimé	008
Nombre international de taches solaires estimé	099 - Basé sur 30 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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