Affichage des archives de lundi, 1 juillet 2019

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2019 Jul 01 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
01 Jul 2019	067	015
02 Jul 2019	067	007
03 Jul 2019	067	007

Bulletin

The Sun did not produce any flares in the past 24 hours. A Bxo (beta) sunspot region emerged around 15h UT on June 30 near S25E0, but had all but decayed again on July 1, meaning the visible side of the Sun is spotless again. The chance for a C flare in the next 24 hours is estimated at only 1%.

No Earth-directed Coronal Mass Ejections (CMEs) were observed in available coronagraphic imagery.

The greater than 10 MeV proton flux was at nominal levels in the past 24 hours, and is expected to stay at nominal levels in the next 24 hours.

Solar wind speed near Earth as registered by ACE varied between about 300 and 390 km/s in the past 24 hours. The Interplanetary Magnetic Field (IMF) was predominantly directed towards the Sun and its magnitude varied between about 2 and 9 nT (with values unknown during a data gap from about 3:20 till 10:20 UT on July 1), with current values around 7 nT. Bz had some short intervals below -5 nT between about 23h UT on June 30 and the start of the data gap around 3:20 UT on July 1.

Quiet to active geomagnetic conditions (K Dourbes between 1 and 4; NOAA Kp between 0 and 3) were registered in the past 24 hours. Quiet to unsettled geomagnetic levels (K Dourbes < 4) are expected on July 1, 2 and 3, with a chance for active geomagnetic levels (K Dourbes = 4) on July 1 and 2.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 007, sur la base de 22 stations.

Indices solaires pour 30 Jun 2019

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	067
AK Chambon La Forêt	012
AK Wingst	006
Ap estimé	005
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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