Перегляд архіву пʼятниця, 11 серпня 2023

Щоденний бюлетень про сонячну та геомагнітну активність від SIDC

Випущено: 2023 Aug 11 1242 UTC

Прогноз SIDC

Сонячні спалахи

M-class flares expected (probability >=50%)

Геомагнетизм

Quiet (A<20 and K<4)

Сонячні протони

Quiet

	10 см потік	Ap
11 Aug 2023	156	007
12 Aug 2023	156	007
13 Aug 2023	156	007

Сонячно-активні області та спалахи

Solar flaring activity has been quite over the past 24 hours with few C-class flares. The larger flare was a C8.3-class flare produced by NOAA AR 3395 (Catania sunspot group 14) and was peaking at 06:45 UTC on August 11. The other region that showed some C-class flaring activity was the NOAA AR 3398 (Catania sunspot group 16). The other regions did not show any significant flaring activity. Solar flaring activity is expected to remain quite over the next 24 hours with a high probability of C-class flare and a very small chance of M-class flares.

Корональні викиди маси

No coronal mass ejection (CME) with an Earth- directed component was identified in the SOHO/LASCO-C2 coronagraph images over the past 24 hours.

Сонячний вітер

The solar wind parameters were mostly close to nominal levels over the past 24 hours. The total interplanetary magnetic field slightly increased around 16:00 UTC on August 10 reaching values around 9 nT and 10 nT. Few hours later, around 21:30 UTC the solar wind speed increase to about 550 km/s for about 2 hours before returning to slow wind speeds (ranging from 400 km/s to 490 km/s). This minor solar wind enhancement indicate the passage of a solar wind structure with an unclear source on the solar disc. The north-south component was fluctuating between -4.8 nT and 8.3 nT. The solar wind conditions are expected to remain as such for the next 24 hours.

Геомагнетизм

Geomagnetic conditions were mostly quiet with some short unsettled periods (NOAA Kp 1-3, K Belgium 1-3) over the past 24 hours. Mostly quiet conditions with possible short unsettled periods are expected for the next 24 hours.

Рівні потоку протонів

The greater than 10 MeV proton flux has now decreased and returned to nominal values. New proton event cannot be excluded due to the flaring activity, however, it is not very likely.

Потоки електронів на геостаціонарній орбіті

The greater than 2 MeV electron flux was above the level of the 1000 pfu alert threshold for a short period, and is expected to remain below threshold during the next 24 hours. The 24h electron fluence was at normal levels and is expected to remain so.

Розрахунок міжнародної кількості сонячних плям станом на сьогодні (ISN): 113, за даними 20 станцій.

Сонячні індекси за 10 Aug 2023

Число Вольфа, Катанія	111
Сонячний потік 10 см	156
AK Chambon La Forêt	013
AK Wingst	010
Розрахунковий індекс Ap	010
Розрахункова міжнародна кількість сонячних плям	113 - За даними 31 станцій

Зведення помітних подій

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

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