Перегляд архіву пʼятниця, 23 жовтня 2020

Щоденний бюлетень про сонячну та геомагнітну активність від SIDC

Випущено: 2020 Oct 23 1243 UTC

Прогноз SIDC

Сонячні спалахи

Quiet conditions (<50% probability of C-class flares)

Геомагнетизм

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

Сонячні протони

Quiet

	10 см потік	Ap
23 Oct 2020	075	004
24 Oct 2020	075	005
25 Oct 2020	076	014

Бюлетень

Solar flaring activity was at very low levels. No significant flares have been recorded. Solar activity is expected to remain at very low levels. Catania group 45 (NOAA AR 2776 - alpha classification - SE) is very gradually decaying. Plage at about N30E50 is yet to form to a region. Catania group 46 has been reported at about N30E20.

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

The greater than 10 MeV proton flux was at background levels over the past 24 hours. It is expected to stay at background levels for the next 24 hours. The greater than 2 MeV electron flux was at background to nominal levels over the past 24 hours and is expected to remain so over the next 24 hours.

The speed of the solar wind varied between 330 and 415 km/s (DSCOVR). The polarity of the Interplanetary Magnetic Field (IMF) switched orientation from towards to away from the Sun (phi angle from negative to positive sector) early Oct 23. Bz fluctuated between -5 and +8 nT. The magnitude of the magnetic field varied between 1 and 8 nT. An extension of the positive northern Coronal Hole (CH) is crossing central meridian. Over the next 24 hours, the solar wind parameters are expected to fluctuate with an overall increasing trend, due to possible impacts of high speed stream from the CHs crossing the solar disk the past days.

The geomagnetic conditions were quiet. The values registered for the past 24 hours were 1-2 for K Dourbes and NOAA Kp. Quiet to unsettled conditions are expected for the next 24 hours.

Розрахунок міжнародної кількості сонячних плям станом на сьогодні (ISN): 018, за даними 13 станцій.

Сонячні індекси за 22 Oct 2020

Число Вольфа, Катанія	012
Сонячний потік 10 см	075
AK Chambon La Forêt	008
AK Wingst	008
Розрахунковий індекс Ap	006
Розрахункова міжнародна кількість сонячних плям	010 - За даними 28 станцій

Зведення помітних подій

Надано Центром Аналізу Даних Сонячного Впливу (SIDC)© - SIDC - Оброблено SpaceWeatherLive

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