Affichage des archives de dimanche, 23 janvier 2022

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2022 Jan 23 1231 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

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

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
23 Jan 2022	095	013
24 Jan 2022	095	010
25 Jan 2022	095	014

Bulletin

There are 2 visible active regions on the solar disk, both with alpha magnetic field configuration. No C-class flares or higher in the past 24 hours. Solar activity is expected to be low in the next 24 hours.

A CME erupted at 10:36 UT on 22 January (angular width about 90 degrees), it was directed mostly towards the norteas, but it could have an Earth directed component, with expected arrival on 26 January.

A coronal hole (positive polarity) crossed the central meridian on 21 January, its associated high speed steam can be expected at the Earth in about 48 hours.

The greater than 10 MeV proton is below the 10 pfu threshold. The greater than 2 MeV electron flux is slightly above the 1000 pfu alert threshold and is expected to remain close to the threshold during the next 24 hours. The 24h electron fluence was at moderate levels and is expected to remain so in the next 24 hours.

The solar wind speed at Earth is about 400 km/s, and the interplanetary magnetic field around 5 nT. Slow solar wind conditions are expected for the next 24 hours.

Geomagnetic conditions were quiet to unsettled locally (K_Bel 1 - 3) and at planetary levels (Kp 2 - 3). The CME from 20 January may arrive to the Earth in the next 24 hours, increasing geomagnetic conditions to active or even minor storm levels.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 021, sur la base de 05 stations.

Indices solaires pour 22 Jan 2022

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	095
AK Chambon La Forêt	019
AK Wingst	013
Ap estimé	010
Nombre international de taches solaires estimé	022 - Basé sur 13 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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