Affichage des archives de lundi, 2 novembre 2020

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2020 Nov 02 1242 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
02 Nov 2020	077	007
03 Nov 2020	077	007
04 Nov 2020	077	007

Bulletin

The solar activity was mostly quiet over the past 24 hours. The active regions NOAA AR 2778 and 2779 rotated out of the view over the west limb, nevertheless two C-class flares were observed coming from those regions. The solar activity is expected to remain mostly at low levels with a low probability of C-class flare.

No Earth directed Coronal Mass Ejections (CMEs) were observed in the available coronagraphic imagery in the last 24 hours.

The greater than 10 MeV proton flux was at nominal levels over the past 24 hours and is expected to stay at nominal levels for the next 24 hours. The greater than 2 MeV electron flux was slightly above the threshold of 10^3 pfu between 14:00 and 20:00 on November 1. It is expected to remain mostly at low levels.

The Earth is currently under the influence of the slow solar wind streams. The solar wind speed varied between 320 km/s and 420 km/s. Bz was above -6.3 nT and B reached 6 nT. The solar wind speed is expected to remain at low speeds over the next 24 hours.

The geomagnetic conditions were quiet with the Kp-NOAA and KDourbes index ranging between 0 and 3. For a very short period, KDourbes also showed some active conditions and reached 4. The CME from October 26 may still arrive to Earth today and cause up to active conditions. Otherwise quiet to unsettled conditions expected in the next 24 hours.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 007, sur la base de 14 stations.

Indices solaires pour 01 Nov 2020

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	077
AK Chambon La Forêt	014
AK Wingst	010
Ap estimé	010
Nombre international de taches solaires estimé	002 - Basé sur 17 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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