Affichage des archives de dimanche, 10 juillet 2022

Bulletin quotidien sur l'activité solaire et géomagnétique du SIDC

Publié: 2022 Jul 10 1231 UTC

Prévisions SIDC

Éruptions solaires

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

Géomagnétisme

Quiet (A<20 and K<4)

Moniteur de Flux de Proton

Quiet

	Flux de 10 cm	Ap
10 Jul 2022	143	005
11 Jul 2022	150	005
12 Jul 2022	155	011

Bulletin

Solar flaring activity was low during the last 24 hours, with several C-class flares detected, the brightest of which was a C8 at 9 July 13:48 UT form NOAA Active Region (AR) 3047. More C-class flare activity is expected in the next 24 hours, mostly from NOAA AR 3053 and 3055 (Catania groups 72 and 78), while M-class activity remains possible.

A Coronal Mass Ejection (CME) can be seen in SOHO/LASCO C2 images, at 9 July 13:48 UT. This event was launched from the west solar limb and it is not geo-effective.

The greater than 10 MeV proton flux was at nominal levels over the past 24 hours and is expected to remain so for the next 24 hours. The greater than 2 MeV electron flux remained below the 1000 pfu alert threshold and is expected to remain below this threshold during the next 24 hours. The 24h electron fluence was at nominal levels and is expected to remain so.

The Solar Wind (SW) parameters during the last 24 hours are typical of the slow SW regime. The SW speed was around 350 to 420 km/s. The magnetic field (Bt) varied between 2 and 10 nT, while its Bz component fluctuated from -8 to 7 nT in the last 24 hours. The interplanetary magnetic field phi angle is in the positive sector (directed away from the Sun) since 9 July 20:00 UT. The SW conditions are expected to remain in the slow SW regime the next 24 hours.

Geomagnetic conditions reached globally and locally moderate levels (NOAA Kp 1-3, K Doubres 0-3) during the last 24 hours. Conditions are expected to drop to quiet levels both globally and locally in the next 24 hours.

Estimation du nombre international de taches solaires (ISN) pour aujourd'hui : 109, sur la base de 20 stations.

Indices solaires pour 09 Jul 2022

Nombre de Wolf, observé par Catania	///
Flux solaire à 10 cm	137
AK Chambon La Forêt	011
AK Wingst	009
Ap estimé	007
Nombre international de taches solaires estimé	098 - 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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