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SIDC 太陽影響數據分析中心的每日公告

發布時間: 2025 Feb 23 1231 UTC

SIDC太陽影響數據分析中心的預報

太陽閃焰

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

地磁

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

太陽質子

Warning condition (activity levels expected to increase, but no numeric forecast given)

	10公分通量	Ap
23 Feb 2025	199	022
24 Feb 2025	201	016
25 Feb 2025	203	007

太陽活動區和耀斑

A total of 13 numbered sunspot groups were identified on the disk over the past 24 hours. Solar flaring activity was moderate over the past 24 hours, with 3 M-class flare identified. The largest one was an M4.9 flare (SIDC Flare 3688) peaking on February 23 at 02:13 UTC, which was produced by SIDC Sunspot Group 410 (NOAA Active Region 4001). Solar flaring activity is expected to be moderate over the next 24 hours, with M-class flares likely and a chance for X-class flares.

日冕物質拋射

No Earth-directed CMEs have been observed in the last 24 hours.

太陽風

The solar wind speed at Earth is around 330 km/s, with the interplanetary magnetic field magnitude currently around 5 nT. Similar slow solar wind conditions are expected to persist for the next 24 hours. However, the CME that left the Sun early on 20 February, may arrive in the next 24 hours and cause disturbed conditions.

地磁

Geomagnetic conditions have been quiet locally (K_Bel up to 2) and up to unsettled levels globally (Kp up to 3). Similar conditions can be expected for the next 24 hours, with possible disturbed conditions if the CME from 20 February arrives.

質子通量水平

The 10 MeV proton flux remained below the threshold level. It is expected to remain below the threshold level over the next 24 hours, but a warning condition has been raised since several complex active regions are showing increasing activity in the western hemisphere.

地球靜止軌道上的電子通量

The greater than 10 MeV GOES 16 and 18 electron flux has been below the threshold in the last 24 hours It is expected to remain so in the next 24 hours. The 24-hour electron fluence is currently at normal levels and is expected to remain so in the next 24 hours.

今日估計的國際太陽黑子數（ISN）：179，基於13個觀測站。

太陽活動指數 22 Feb 2025

卡塔尼亞沃爾夫數	///
10厘米太陽通量	199
AK Chambon La Forêt	014
AK Wingst	008
估計地磁Ap指數	007
估計國際太陽黑子數	177 - 基於09個觀測站

顯著活動摘要

由太陽影響數據分析中心提供© - SIDC - 由 SpaceWeatherLive處理

所有時間均採用 UTC 時間

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