Affichage des archives de mercredi, 8 juillet 2020

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2020 Jul 08 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
08 Jul 2020	068	003
09 Jul 2020	068	008
10 Jul 2020	068	006

Bulletin

Solar activity was at very low levels and is expected to remain so. The visible solar disk returned to spotlessness. A patchy positive polarity coronal hole (CH) is transiting the central meridian.

The greater than 10 MeV proton flux and the greater than 2 MeV electron flux were at nominal levels during the last 24 hours and are expected to remain so.

No earth-directed coronal mass ejections (CMEs) were observed in available coronagraphic imagery.

Solar wind speed continued its gradual decline from about 430 km/s to its current values near 370 km/s (DSCOVR). Bz varied between -2 and +3 nT. The direction of the interplanetary magnetic field (phi angle) was predominantly directed away from the Sun (positive sector).

Geomagnetic activity was at quiet levels, with an unsettled interval (12-15UT) recorded at Dourbes. Geomagnetic conditions are expected to be mostly quiet, with a chance on an unsettled interval in particular on 9 July if a glancing blow from the 5 July CME would affect the earth environment.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 000, sur la base de 15 stations.

Indices solaires pour 07 Jul 2020

Nombre de Wolf, observé par Catania	025
Flux solaire à 10 cm	068
AK Chambon La Forêt	006
AK Wingst	004
Ap estimé	003
Nombre international de taches solaires estimé	010 - Basé sur 32 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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