Affichage des archives de samedi, 24 mars 2018

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2018 Mar 24 1230 UTC

Prévisions SIDC

Éruptions solaires

Quiet conditions (<50% probability of C-class flares)

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
24 Mar 2018	068	013
25 Mar 2018	068	026
26 Mar 2018	068	013

Bulletin

Solar activity remained at very low levels. The Sun is spotless. No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal levels.

Solar activity is expected to stay at very low levels.

Solar wind conditions were enhanced for most of the period. Solar wind speed increased from an initial 430 km/s to peak values near 510 km/s around 16UT and 19UT, ending the period in the 390-420 km/s range (DSCOVR). Bz oscillated between -4 and +4 nT. The interplanetary magnetic field was predominantly directed towards the Sun, with a positive interval from 19-05UT. Geomagnetic activity was at quiet to unsettled levels, with active conditions observed in Kp and by Dourbes during the 18-21UT and 21-24UT intervals.

Quiet to active geomagnetic conditions are expected with a chance on minor storming episodes in response to the solar wind stream associated with the extension of the negative polarity southern polar CH.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 18 stations.

Indices solaires pour 23 Mar 2018

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	068
AK Chambon La Forêt	022
AK Wingst	020
Ap estimé	020
Nombre international de taches solaires estimé	000 - Basé sur 22 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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