Affichage des archives de mardi, 10 mars 2026

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2026 Mar 10 1231 UTC

Prévisions SIDC

Éruptions solaires

C-class flares expected, (probability >=50%)

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
10 Mar 2026	129	021
11 Mar 2026	127	011
12 Mar 2026	125	011

Régions solaires actives et éruptions solaires

Solar flaring activity was low over the past 24 hours, with only C-class flares identified. The largest flare was a C7.8 flare (SIDC Flare 7149) peaking on March 09 at 20:38 UTC, which was produced by SIDC Sunspot Group 762 (NOAA Active Regions 4387). A total of 5 numbered sunspot groups were identified on the disk over the past 24 hours, all with alpha or beta magnetic configuration. Solar flaring activity is expected to be low over the next 24 hours, with C-class flares very likely and a chance for M-class flares.

Éjection de masse coronale

No new Earth-directed Coronal Mass Ejections (CMEs) have been detected in the available coronagraph images.

Vent solaire

Over the last 24 hours, the solar wind reduced to slow solar wind conditions. The solar wind speed was around 440 km/s. The interplanetary magnetic field was around 6nT with the Bz reaching a minimum value -6 nT. Slow solar wind conditions are expected to continue over the next 24 hours.

Géomagnétisme

Geomagnetic conditions globally and locally were quiet to unsettled (NOAA Kp 3, K_bel 3) during the last 24 hours. Quiet to unsettled conditions are expected over the next 24 hours.

Niveaux de flux de protons

The greater than 10 MeV proton flux remained below the 10 pfu threshold and is expected to remain so over the next days.

Flux d'électrons sur l'orbite géostationnaire

The greater than 2 MeV electron flux crossed shortly the 1000 pfu alert threshold, but was mainly below the threshold. The greater than 2 MeV electron flux is expected to remain mainly below the threshold, but with a short crossing during the next 24 hours. The 24h electron fluence was at normal levels and is expected to remain so.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 083, sur la base de 12 stations.

Indices solaires pour 09 Mar 2026

Nombre de Wolf, observé par Catania	125
Flux solaire à 10 cm	128
AK Chambon La Forêt	016
AK Wingst	008
Ap estimé	007
Nombre international de taches solaires estimé	085 - Basé sur 28 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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