Affichage des archives de jeudi, 14 juillet 2022

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2022 Jul 14 1238 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
14 Jul 2022	170	005
15 Jul 2022	173	010
16 Jul 2022	178	007

Bulletin

Solar flaring activity was at moderate levels over the past 24 hours with several C-class flares and an isolated M flare observed. The largest flare observed was an M1.2 flare, peaking at 04:31 UT, originating from a region about to rotate onto the disk over the east limb (N15E80). There are four other numbered active regions on disk which were mostly stable. The flaring activity is expected to be at low levels with C-class flares expected, M-class flares remain possible and there is chance for an X-class flare.

No Earth directed Coronal Mass Ejections (CMEs) have been observed in the available coronagraph data.

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 2MeV electron flux was below the 1000 pfu threshold and is expected to remain so over the next 24 hours. The 24h electron fluence was at normal levels and is expected to be at normal levels over the next 24 hours.

The Earth is currently under the influence of a high-speed stream. The solar wind increased from 475 to around 580 km/s. The total magnetic field was stable around 6nT. The interplanetary magnetic field phi angle was predominantly in the positive sector (directed away from the Sun). The solar wind conditions are expected to remain enhanced for the next 24 hours due to the continued influence of the high speed stream.

Geomagnetic conditions were quiet over the past 24 hours (NOAA Kp and Local K-Dourbes 1-2). Geomagnetic conditions are expected to be mostly quiet over the next 24 hours with unsettled and active intervals possible.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 132, sur la base de 15 stations.

Indices solaires pour 13 Jul 2022

Nombre de Wolf, observé par Catania	159
Flux solaire à 10 cm	165
AK Chambon La Forêt	006
AK Wingst	006
Ap estimé	004
Nombre international de taches solaires estimé	126 - Basé sur 34 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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