Affichage des archives de mardi, 22 mars 2022

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2022 Mar 22 1235 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
22 Mar 2022	099	008
23 Mar 2022	100	007
24 Mar 2022	103	007

Bulletin

Solar activity was mostly at low levels over the last 24 hours. Several active regions are on the solar disc visible from Earth. NOAA-AR 2972 and 2973, have both a beta magnetic field configuration but no significant activity has been recorded ; New regions are visible close to the East limb and have produced several B-class and C-class flares. For the next 24 hours, C-class flares are possible.

No Earth directed Coronal Mass Ejection (CME) has been detected in the available coronagraph imagery over the last 24 hours.

The greater than 10 MeV proton flux was at nominal levels in the past 24 hours and is expected to remain at nominal levels in the next 24 hours. The greater than 2 MeV electron flux remained below the 1000 pfu alert threshold and is expected to be close to the threshold in the next 24 hours. The greater than 2 MeV electron fluence was moderate levels in the past 24 hours and is expected to be at between nominal and moderate levels in the next 24 hours.

The solar wind parameters in Earth environment (as recorded by DSCOVR) showed an ambient background and slow solar wind speed regime. The solar wind speed fluctuated around 300 km/s and 400 km/s, the interplanetary magnetic field was ranging from 5 nT to 8 nT, and its southward Bz- component was fluctuating between -6 nT and 4 nT. The solar wind parameters are expected to remain close to nominal values for the flowing day.

The geomagnetic conditions were quiet to unsettled levels (K-BEL and NOAA- Kp recorded values of 1-3). Geomagnetic conditions are also expected to remain mostly quiet.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 044, sur la base de 21 stations.

Indices solaires pour 21 Mar 2022

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	098
AK Chambon La Forêt	009
AK Wingst	005
Ap estimé	004
Nombre international de taches solaires estimé	048 - Basé sur 28 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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