Affichage des archives de mardi, 12 juillet 2022

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2022 Jul 12 1239 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Active conditions expected (A>=20 or K=4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
12 Jul 2022	171	020
13 Jul 2022	180	014
14 Jul 2022	173	006

Bulletin

Solar flaring activity was at low levels over the past 24 hours with several C-class flares. There are six numbered active regions on disk, of which NOAA Active Regions 3053, 3055, 3056 and 3057 are most active. NOAA AR 3056 produced a C7.6 flare peaking at 03:28. The flaring activity is expected to be at moderate levels with C-class flares expected, M-class flares are probable and a slight 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 solar wind speed increased from 300 to 470 km/s with a small shock detected at 16:20 UT. The total magnetic field ranged between 1 and 17 nT and had a minimum Bz of -14 nT. 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 due to a combination of the arrival of the solar wind associated with the positive polarity coronal hole, which began to cross the central meridian on July 09, and a possible glancing blow from the CME observed on July 8.

Geomagnetic conditions were quiet to active over the past 24 hours (NOAA Kp and Local K-Dourbes 2-4). Geomagnetic conditions are expected to be active over the next 24 hours with a chance of minor storm conditions.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 116, sur la base de 20 stations.

Indices solaires pour 11 Jul 2022

Nombre de Wolf, observé par Catania	179
Flux solaire à 10 cm	161
AK Chambon La Forêt	024
AK Wingst	018
Ap estimé	015
Nombre international de taches solaires estimé	129 - Basé sur 32 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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