Affichage des archives de lundi, 9 octobre 2017

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2017 Oct 09 1246 UTC

Prévisions SIDC

Éruptions solaires

Quiet conditions (<50% probability of C-class flares)

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
09 Oct 2017	080	003
10 Oct 2017	079	008
11 Oct 2017	077	006

Bulletin

Solar activity was at very low levels. NOAA 2683 (Catania 57) had rotated over the west limb by the end of the period. It was the source of five B-class flares observed over the past 24 hours. The last B1.4 flare peaked at 03:24 UT today (09-Oct-2017). No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery. Integral proton flux for protons with energies above 10 MeV remained at background level. Mostly quiet flaring conditions are expected. Solar wind speed gradually decreased from 450 till 360 km/s (DSCOVR). Bz fluctuated between -2.5 and +5 nT, being mostly positive.The interplanetary magnetic field was directed towards the Sun. The extension of a positive polar CH started its transit of the Central Meridian early on 07 October and may influence the earth environment around 10-11 October. The geomagnetic field was at quiet levels, both NOAA and local station at Dourbes ranged 0-2. Mostly quiet geomagnetic conditions are expected, with a chance on an isolated unsettled interval.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 20 stations.

Indices solaires pour 08 Oct 2017

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	077
AK Chambon La Forêt	006
AK Wingst	004
Ap estimé	003
Nombre international de taches solaires estimé	000 - Basé sur 21 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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