Affichage des archives de dimanche, 19 janvier 2020

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2020 Jan 19 1236 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
19 Jan 2020	072	004
20 Jan 2020	071	007
21 Jan 2020	071	008

Bulletin

During last 24 hours, solar flaring activity remained to be very low, without any flares reported. We expect such a low level of flaring activity to persist in the coming hours. A faint CMEs was observed by SOHO/LASCO C2 at about 22:00 UT on January 18, rising above the east solar limb observed. The source region of the eruption is presently unclear, but from the coronagraph observations it seems that the CME is not Earth- directed. During last 24 hours the solar proton flux remained at the background level.

The solar wind speed is fluctuating between 320 and 340 km/s during last 48 hours, and the interplanetary magnetic field magnitude is 3 nT. The solar wind originating from the patchy coronal hole that reached central meridian in the morning of January 16 might be expected at the Earth in the second half of the January 20. Presently geomagnetic conditions are quiet and we expect them to stay so in the coming hours.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 22 stations.

Indices solaires pour 18 Jan 2020

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	071
AK Chambon La Forêt	004
AK Wingst	003
Ap estimé	002
Nombre international de taches solaires estimé	000 - Basé sur 27 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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