Affichage des archives de mardi, 6 octobre 2020

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2020 Oct 06 1243 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
06 Oct 2020	071	013
07 Oct 2020	071	008
08 Oct 2020	071	007

Bulletin

Solar X-ray flux remained below B level throughout the period. There are no active regions on disk and chances for flaring at C level are very low.

No Earth directed Coronal Mass Ejections (CME's) have been observed in coronagraph data.

The greater than 10 MeV proton flux was at nominal levels in the past 24 hours, and is expected to remain so in the next 24 hours. The greater than 2 MeV electron flux has fallen quite suddenly and is currently below the 10^3 pfu event threshold. The electron flux is likely to reach over the threshold during the day but is overall recovering to background conditions over the next days.

Solar wind was in the slow regime but was marked by a transient magnetic feature. While Solar wind speed was in an overall decaying trend in the 380-320 km/s range, the magnetic field increased to over 10nT with periods of consistent orientation of the Bz. First negative (down to -9nT) and then positive later in the period. Solar wind conditions are expected to return to nominal.

Geomagnetic conditions reached active levels (NOAA Kp 4) while remaining unsettled locally (local K Dourbes 1-3). Geomagnetic conditions can first still reach unsettled levels, but should return to nominal quiet conditions.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 21 stations.

Indices solaires pour 05 Oct 2020

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	072
AK Chambon La Forêt	024
AK Wingst	015
Ap estimé	012
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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