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Щоденний бюлетень про сонячну та геомагнітну активність від SIDC

Випущено: 2024 Apr 15 1231 UTC

Прогноз SIDC

Сонячні спалахи

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

Геомагнетизм

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

Сонячні протони

Quiet

	10 см потік	Ap
15 Apr 2024	185	015
16 Apr 2024	187	017
17 Apr 2024	189	024

Сонячно-активні області та спалахи

Solar flaring activity was at moderate levels, with multiple C-class flares and four M-class flares recorded in the past 24 hours. The largest flare of the period was an impulsive M2.3 flare, peaking at 08:42 UTC on Apr 15, associated with NOAA AR 3634 (beta class). NOAA AR 3639 (beta class), that produced three remaining M-class flares, was the main driver of the flaring activity observed over the past 24 hours. Other regions on the disc have simple configuration of their photospheric magnetic field (alpha and beta) and did not show any significant flaring activity. The solar flaring activity is expected to be at low to moderate levels over the next 24 hours, with C-class flares probable and a chance of M-class flares.

Корональні викиди маси

No Earth-directed CMEs have been detected in the available coronagraph imagery over the past 24 hours.

Сонячний вітер

The solar wind parameters were indicative of a slow solar wind regime. The solar wind speed ranged between 330 and 380 km/s. The interplanetary magnetic field magnitude was below 5 nT. The southward component of the interplanetary magnetic field fluctuated between -4 nT and 4 nT. The magnetic field orientation was predominantly in the negative sector (field directed towards the Sun). Similar solar wind conditions are expected, with a chance for a weak enhancement on Apr 15 - Apr 16 due to the anticipated arrival of CMEs from Apr 11 and Apr 12.

Геомагнетизм

Geomagnetic conditions were quiet both globally and locally (NOAA-Kp and K-BEL: 1 to 2) during the last 24 hours. Geomagnetic conditions are expected to remain mostly at quiet levels, with a chance of reaching active levels on Apr 15 - 16 due to potential CMEs arrivals.

Рівні потоку протонів

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.

Потоки електронів на геостаціонарній орбіті

The greater than 2 MeV electron flux, as measured by the GOES-16 satellite, remained below the 1000 pfu threshold. It is expected to remain below the threshold during the next 24 hours. The 24 hour electron fluence was at normal levels and is expected to remain at these levels for the following 24 hours.

Розрахунок міжнародної кількості сонячних плям станом на сьогодні (ISN): 166, за даними 14 станцій.

Сонячні індекси за 14 Apr 2024

Число Вольфа, Катанія	///
Сонячний потік 10 см	178
AK Chambon La Forêt	010
AK Wingst	006
Розрахунковий індекс Ap	006
Розрахункова міжнародна кількість сонячних плям	139 - За даними 23 станцій

Зведення помітних подій

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

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