Просмотр архива за среда, 7 сентября 2022

Daily bulletin on solar and geomagnetic activity from the SIDC

Существующий: 2022 Sep 07 1232 UTC

SIDC Forecast

Солнечные вспышки

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

Geomagnetism

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

Солнечные протоны

Quiet

	10cm flux	Ap
07 Sep 2022	123	010
08 Sep 2022	122	010
09 Sep 2022	120	010

Bulletin

Solar flaring activity was low during the last 24 hours, with six C-class flares detected, the brightest being an C3 at 18:42 UTC yesterday. However, all but one of those flares originated from NOAA Active Region (AR) 3088 that is now invisible from Earth. NOAA AR 3092 produced a C1 flare in the previous 24 hours and it is likely to produce some more C-class activity in the next 24 hours.

No Earth directed CMEs observed 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 remain so for the next 24 hours. The greater than 2 MeV electron flux was above the 1000 pfu alert threshold during the last 24 hours and is expected to remain above this level for the next 24 hours. The 24h electron fluence was at moderate levels in the past 24 hours and is expected to remain at these levels during the next 24 hours.

The Solar Wind (SW) conditions remained affected by the High Speed Stream (HSS) that arrived on 3 Sep. The SW speed ranged between 530 and 630 km/s over the last 24 hours. The total magnetic field (Bt) varied between 3 and 6 nT, while its Bz component ranged between -6 and 6 nT. The interplanetary magnetic field (phi) angle was directed away from the Sun during the last 24 hours. The SW conditions are expected to continue in the same pattern in the next 24 hours.

Geomagnetic conditions reached globally active (Kp 2-4) and locally unsettled (K-Belgium 2-3) levels over the last 24 hours. Unsettled conditions are expected for the next 24 hours with intervals of active conditions.

Today's estimated international sunspot number (ISN): 095, based on 19 stations.

Solar indices for 06 Sep 2022

Wolf number Catania	///
10cm solar flux	///
AK Chambon La Forêt	///
AK Wingst	022
Estimated Ap	019
Estimated international sunspot number	078 - Based on 28 stations

Noticeable events summary

Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive

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