Affichage des archives de dimanche, 13 novembre 2022

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2022 Nov 13 1245 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
13 Nov 2022	138	004
14 Nov 2022	138	007
15 Nov 2022	138	007

Bulletin

The solar flaring activity over the past 24 hours was at low levels with several C-class flares. The largest flare was a C6.5-class flare, produced by the complex bipolar sunspot region Catania Sunspot group 89 (NOAA AR 3141) at 18:04 UTC on November 12. Catania Sunspot group 89 (NOAA AR 3141) produced several other smaller and short duration C-class flares. The other complex bipolar sunspot, Catania Sunspot group 88 (NOAA AR 3140) also produced two small C-class flares. The other sunspot groups on the solar surface visible from Earth didn’t show any significant flaring activity. The flaring activity over the next 24 hours is expected to remain low to moderate levels with C-class flares and a probability of M-class flare.

No Earth-directed coronal mass ejections were detected in the available coronagraph imagery over the past 24 hours.

The greater than 10 MeV proton flux was at nominal levels in the past 24 hours and is expected to remain so in the next 24 hours. The greater than 2 MeV electron flux was below the 1000 pfu threshold over the past 24 hours and is expected to remain below the 1000 pfu threshold over the next 24 hours. The electron fluence was at normal levels and is expected to remain at normal levels over the next 24 hours.

Over the past 24 hours, the solar wind parameters (ACE and DSCOVR) were slightly elevated reflecting the influence of the high-speed streams from a small and narrow equatorial coronal hole (negative polarity). The solar wind speed increased from 432 km/s to 504 km/s; the total interplanetary magnetic field returned to values below 7.5 nT; and the southward interplanetary magnetic field, Bz component, ranged between -5.1 nT and 6.6 nT. The solar wind parameters are expected to remain enhanced for the next days.

The geomagnetic conditions over the past 24 hours were quiet to unsettle (K-Belgium, Kp-NOAA ranged between 0 and 3). Quiet geomagnetic conditions with possible short periods of unsettle geomagnetic conditions are expected in response to the influence of the high-speed streams from the coronal hole.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 102, sur la base de 16 stations.

Indices solaires pour 12 Nov 2022

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	138
AK Chambon La Forêt	007
AK Wingst	004
Ap estimé	004
Nombre international de taches solaires estimé	079 - Basé sur 21 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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