Перегляд архіву четвер, 20 червня 2024

Щоденний бюлетень про сонячну та геомагнітну активність від SIDC

Випущено: 2024 Jun 20 1248 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
20 Jun 2024	197	012
21 Jun 2024	197	017
22 Jun 2024	197	017

Сонячно-активні області та спалахи

Solar flaring activity over the last 24 hours has been at low levels besides the number of complex sunspot groups currently visible of the disc, with only multiple C-class flares. The larger flare was a C7.2 flare peaking at 09:39 UTC from the originated from NOAA active region 3719. The solar flaring activity is expected to be at low to moderate levels over the next 24 hours, with C-class flares expected, M-class flares possible and a small chance of X-class flares.

Корональні викиди маси

No Earth-directed coronal mass ejection (CME) was observed in SOHO/LASCO-C2 coronographe images over the last 24 hours.

Корональні діри

A large north midlatitude coronal hole with negative polarity, which has crossed the central meridian on June 18 is still facing Earth.

Сонячний вітер

Solar wind conditions were enhanced in the last 24 hours due to the high-speed stream from the equatorial and positive polarity coronal hole. The solar wind speed decreased from around 575 km/s to 463 km/s. The interplanetary magnetic field remained below 6 nT and the Bz component varied between -5 nT and 5 nT. The solar wind conditions are expected returned to a slow solar wind speed today, then the high-speed stream from the large midlatitude north coronal hole with negative polarity is expected to reach Earth in the next 24-36 hours.

Геомагнетизм

Geomagnetic conditions were quiet to unsettle with short a period of active conditions observed by the local stations in Belgium (NOAA Kp 0-2, K BEL 1-4) in response to the high-speed stream from the equatorial, positive polarity coronal hole and the Bz component being negative for a longer period. Mostly quiet conditions are expected over the next 24 hours. Then active conditions to minor storm may be observed in response of the high-speed stream from the large north midlatitude north coronal hole in about 24-36 hours.

Рівні потоку протонів

The greater than 10 MeV proton flux was below the threshold level over the past 24 hours. It is expected to remain below the threshold level and decrease over the next 24 hours.

Потоки електронів на геостаціонарній орбіті

The greater than 2 MeV electron flux was below the threshold level in the last 24 hours and is expected to remain so over the next 24 hours. The 24h electron fluence is presently at normal levels and is expected to remain so over the next 24 hours.

Розрахунок міжнародної кількості сонячних плям станом на сьогодні (ISN): 167, за даними 13 станцій.

Сонячні індекси за 19 Jun 2024

Число Вольфа, Катанія	///
Сонячний потік 10 см	196
AK Chambon La Forêt	014
AK Wingst	014
Розрахунковий індекс Ap	013
Розрахункова міжнародна кількість сонячних плям	154 - За даними 24 станцій

Зведення помітних подій

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

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