Affichage des archives de dimanche, 5 juin 2022

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2022 Jun 05 1231 UTC

Prévisions SIDC

Éruptions solaires

C-class flares expected, (probability >=50%)

Géomagnétisme

Active conditions expected (A>=20 or K=4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
05 Jun 2022	101	014
06 Jun 2022	100	007
07 Jun 2022	098	007

Bulletin

Over the past 24 hours, solar flaring activity has been very low, no C-class flares observed. There are six active regions visible on the disk. NOAA AR 3023 together with the newly numbered ARs 2028 and 2029, have alpha magnetic field configuration. NOAA ARs 3024, 3026 and 3027 have been stable and have beta magnetic field configuration. C-class flares are possible in the next 24 hours.

A filament erupted in the northern hemisphere, leading to a CME mostly directed to the north. This CME will most likely miss the Earth, but a glancing blow cannot be discarded on 7-8 July.

The greater than 10 MeV proton flux was at nominal levels and is expected to remain so in the next 24 hours. The greater than 2 MeV electron has been fluctuating around the 1000 pfu threshold over the past 24 hours. It can be expected to decrease in the next 24 hours. The 24h electron fluence is at moderate levels, and is expected to remain so in the next 24 hours.

The solar wind arriving to the Earth is slow, with speeds around 280 km/s and interplanetary magnetic field around 4 nT. The CME that erupted on 2 June could still arrive today, but it has probably passed to the west of the Earth. In that case, slow wind conditions can be expected for the next 24 hours.

Over the past 24 hours, geomagnetic conditions have been quiet (Kp=1, K_BEL=2). Over the next 24 hours, similar conditions can be expected, unless the ICME mentioned above arrives and causes disturbed conditions (probably only up to active levels).

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 050, sur la base de 14 stations.

Indices solaires pour 04 Jun 2022

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	101
AK Chambon La Forêt	006
AK Wingst	004
Ap estimé	002
Nombre international de taches solaires estimé	071 - 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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