Affichage des archives de dimanche, 18 août 2019

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2019 Aug 18 1737 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
18 Aug 2019	067	006
19 Aug 2019	068	009
20 Aug 2019	067	007

Bulletin

Solar activity was at very low levels. The Sun was spotless. No Earth-directed coronal mass ejections (CME) were observed during the period. The greater than 10 MeV proton flux was at nominal values.

Solar activity is expected to remain at very low levels.

The solar wind speed averaged around 350 km/s over the period. The total interplanetary magnetic field abruptly increased from the values near 6nT till 9 nT around 06 UT today and afterwards gradually decrease till the values around 3 nT. Bz component varied between -5 nT and +3 nT.

Quiet geomagnetic conditions were observed most of the time except 00-03 UT today (August 18) of unsettled geomagnetic conditions. Mostly quiet geomagnetic conditions are expected for the next 48 hours with some isolated episodes of unsettled geomagnetic conditions as the result of an irregular shaped negative polarity coronal hole being in geoeffective position.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 21 stations.

Indices solaires pour 17 Aug 2019

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	///
AK Chambon La Forêt	///
AK Wingst	///
Ap estimé	///
Nombre international de taches solaires estimé	000 - Basé sur 21 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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