Affichage des archives de dimanche, 3 mai 2020

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2020 May 03 1231 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
03 May 2020	069	003
04 May 2020	068	008
05 May 2020	068	010

Bulletin

Solar flaring activity was at very low levels. No significant flares have been recorded. Solar activity is expected to remain at very low levels.

No Earth directed Coronal Mass Ejections (CMEs) were observed in the available coronagraphic imagery in the last 24 hours.

The greater than 10 MeV proton flux was at nominal levels over the past 24 hours and is expected to stay at nominal levels for the next 24 hours. The greater than 2 MeV electron flux was between nominal and moderate levels over the past 24 hours and is expected to be at nominal to moderate levels over the next 24 hours.

The solar wind speed near Earth oscillated around 320 km/s (DSCOVR). The total magnetic field was unremarkable, varying between 0 and 7 nT. Bz reached a minimum of -4 nT. The Interplanetary Magnetic Field (IMF) phi angle was predominantly in the negative sector (directed towards the Sun). Predominantly background solar wind conditions are expected for May 03 - 05. The solar wind associated with the negative polarity coronal hole, that transited the central meridian on May 01, is predicted to influence Earth from late on May 04.

Geomagnetic conditions were quiet (local K Dourbes and NOAA Kp recorded values between 0-2) over the last 24 hours. Quiet geomagnetic conditions are expected for May 03 with unsettled conditions possible from late on May 04, due to the arrival of the high speed stream associated with the small equatorial coronal hole mentioned above.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 16 stations.

Indices solaires pour 02 May 2020

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	069
AK Chambon La Forêt	008
AK Wingst	006
Ap estimé	005
Nombre international de taches solaires estimé	000 - Basé sur 28 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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