Affichage des archives de samedi, 24 août 2024

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2024 Aug 24 1231 UTC

Prévisions SIDC

Éruptions solaires

M-class flares expected (probability >=50%)

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
24 Aug 2024	233	007
25 Aug 2024	233	007
26 Aug 2024	233	011

Régions solaires actives et éruptions solaires

Solar flaring activity was high over the past 24 hours, with several M-class flares. The largest flare was a M5.1-flare, with peak time 20:12 UTC on August 23 2024, from NOAA AR 3800 (beta-gamma). There are currently 9 numbered active regions on the visible disk. The most complex active regions are beta-gamma (NOAA AR 3796, 3790, 3799, 3800 and 3801). The solar flaring activity is expected to be at moderate levels over the next 24 hours with C-class flares expected, M-class flares probable and a small chance of X-class flares.

Éjection de masse coronale

The Coronal Mass Ejections (CMEs) detected in LASCO C2 data at 02:06 UTC on August 23 has been further analyzed. Although the bulk of the CME is directed to the west, an Earth-directed component may arrive at Earth on August 27. No other Earth-directed CMEs have been detected in the available coronagraph images.

Vent solaire

The solar wind at the Earth remained slow over the last 24 hours. The solar wind speed was around 370 km/s and the interplanetary magnetic field was stable around 7nT. The Bz reached a minimum value of -8nT. Slow solar wind conditions are expected in the next 24h.

Géomagnétisme

Geomagnetic conditions were globally and locally quiet to unsettled (Kp 3+ and K Bel 3). Quiet conditions are expected in 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 remained below the 1000 pfu alert threshold, and is expected to remain below the threshold 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 : 236, sur la base de 14 stations.

Indices solaires pour 23 Aug 2024

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	242
AK Chambon La Forêt	011
AK Wingst	008
Ap estimé	007
Nombre international de taches solaires estimé	211 - Basé sur 23 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

<< Aller à l'aperçu quotidien