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Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2024 Nov 24 1239 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 Nov 2024	215	008
25 Nov 2024	228	008
26 Nov 2024	240	008

Régions solaires actives et éruptions solaires

Solar flaring activity was moderate over the past 24 hours with 2 M-class flares being recorded. The first M-class flare was an M1.1 flare (SIDC Flare 2692) peaking on November 23 at 16:07 UTC, which was produced by SIDC Sunspot Group 298 (NOAA Active Region 3901) near the central meridian. The second M1.1 flare (SIDC Flare 2702) originated near the north-east limb and was likely produced by the returning region SIDC Sunspot Group 217 (NOAA Active Region 3908). SIDC Sunspot Group 323 (NOAA Active Region 3906) and SIDC Sunspot Group 322 (NOAA Active Region 3905) are the two largest regions on disk and produced multiple C-class flares. SIDC Sunspot Group 318 (NOAA Active Region 3898) also produced a C-class flaring and the remaining regions were quiet. The solar flaring activity is expected to be moderate over the next 24 hours, with C-class flares expected, M-class flares likely and a chance for X-class flares.

Éjection de masse coronale

No Earth-directed Coronal Mass Ejections (CMEs) have been detected in the available coronagraph imagery over the past 24 hours.

Vent solaire

Over the past 24 hours the interplanetary magnetic field ranged between 6 and 8 nT, with a minimum Bz of -6 nT. The solar wind speed increased slightly with values between 370 km/s and 450 km/s. The interplanetary magnetic field phi angle was mostly in the negative sector (directed towards the Sun). The solar wind speed may be slightly elevated over the next 24 hours due to the possible high-speed stream influence, associated with SIDC Coronal Hole 80, which began to cross the central meridian on November 20.

Géomagnétisme

The geomagnetic conditions over the past 24 hours were quiet to unsettled. Generally quiet to unsettled geomagnetic conditions are expected for the next 24 hours, with possible isolated active conditions due to any high-speed stream influence.

Niveaux de flux de protons

The greater than 10 MeV GOES proton flux was below the 10 pfu threshold and is expected to remain so over the next 24 hours.

Flux d'électrons sur l'orbite géostationnaire

The greater than 2 MeV electron flux as measured by GOES 18 was below the 1000 pfu threshold and is expected to remain below this threshold over the next 24 hours. The 24h electron fluence was at nominal levels and is expected to remain so in the next 24 hours.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 159, sur la base de 11 stations.

Indices solaires pour 23 Nov 2024

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	200
AK Chambon La Forêt	012
AK Wingst	010
Ap estimé	008
Nombre international de taches solaires estimé	146 - Basé sur 08 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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