Перегляд архіву субота, 24 жовтня 2020

Щоденний бюлетень про сонячну та геомагнітну активність від SIDC

Випущено: 2020 Oct 24 1251 UTC

Прогноз SIDC

Сонячні спалахи

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

Геомагнетизм

Minor storm expected (A>=30 or K=5)

Сонячні протони

Quiet

	10 см потік	Ap
24 Oct 2020	072	028
25 Oct 2020	073	019
26 Oct 2020	074	021

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.

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 moderate levels as a response to the high solar wind speed caused by the High Speed Streams (HSS) originating from the Coronal Hole (CH) crossing Central Meridian (CM) on Oct 19. It is expected to increase further in the 24 hours.

The speed of the solar wind increased at about Oct 23 17:00UT as a response to the arrival of the HSS originating from the CH crossing CM on Oct 19. Values were between 370 and 575 km/s (DSCOVR). The polarity of the Interplanetary Magnetic Field was predominantly away from the Sun (phi angle to positive sector). Bz fluctuated between -11 and +13 nT. The magnitude of the magnetic field varied between 4 and 15 nT. Over the next 24 hours, the solar wind parameters are expected to remain enhanced due to possible impacts of high speed stream from the CHs crossing the solar disk the past days.

The geomagnetic conditions were active (K Dourbes=4). The values registered for the past 24 hours were 1-4 for K Dourbes and 2-4 for NOAA Kp. Unsettled to active conditions, with a possibility of a minor storm are expected for the next 24 hours.

Розрахунок міжнародної кількості сонячних плям станом на сьогодні (ISN): 016, за даними 15 станцій.

Сонячні індекси за 23 Oct 2020

Число Вольфа, Катанія	026
Сонячний потік 10 см	072
AK Chambon La Forêt	034
AK Wingst	016
Розрахунковий індекс Ap	017
Розрахункова міжнародна кількість сонячних плям	017 - За даними 27 станцій

Зведення помітних подій

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

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