Affichage des archives de mardi, 1 octobre 2019

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2019 Oct 01 1230 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

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

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
01 Oct 2019	068	015
02 Oct 2019	068	011
03 Oct 2019	067	008

Bulletin

Solar activity was at very low levels. A small and as yet unnumbered sunspot region developed near S09E75, producing a B1 flare at 01:45UT (GOES) and ending a 27 days stretch of spotless days (SILSO). No earth-directed coronal mass ejections (CMEs) have been observed in available coronagraphic imagery. The greater than 10 MeV proton flux was at nominal values.

Solar activity is expected to remain at very low levels.

Solar wind speed undulated between mostly 400 and 510 km/s, ending the period with values near 480 km/s (ACE). Bz ranged from -6 to + 5 nT, with negative stretches during the 12-15UT and 00-06UT intervals. Quiet to active geomagnetic conditions were recorded in both Kp and K Dourbes. The interplanetary magnetic field (phi angle) was mostly directed away from the Sun (positive sector).

Geomagnetic activity is expected to be at quiet to unsettled levels, with a decreasing chance on another active episode.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 011, sur la base de 14 stations.

Indices solaires pour 30 Sep 2019

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	068
AK Chambon La Forêt	022
AK Wingst	013
Ap estimé	015
Nombre international de taches solaires estimé	/// - Basé sur /// 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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