查看星期一, 25 8月 2025歷史檔案

SIDC 太陽影響數據分析中心的每日公告

發布時間: 2025 Aug 25 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

Quiet (A<20 and K<4)

太陽質子

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

	10公分通量	Ap
25 Aug 2025	152	007
26 Aug 2025	156	016
27 Aug 2025	160	007

太陽活動區和耀斑

Solar flaring activity was moderate over the past 24 hours, with 2 M-class flares identified. They both originated at a (yet) unnumbered region rotating into view over the east limb (close to the equator). The largest flare was an M4.5 flare peaking at 05:24 UTC. Most of the flaring activity (including several C-class flares) is located on the eastern hemisphere of the Sun. Solar flaring activity is expected to be moderate over the next 24 hours, with M-class flares likely and a small chance for X-class flares.

日冕物質拋射

No Earth-directed Coronal Mass Ejections (CMEs) have been observed in the last 24 hours.

日冕洞

SIDC Coronal Hole 126 (northern mid-latitude coronal hole with negative polarity) is located in the western hemisphere and its related high speed solar wind streamm may arrive to the Earth on 26 August.

太陽風

The Earth is inside slow solar wind with speeds around 410 km/s and interplanetary magnetic fields of about 8 nT (directed towards the Sun, negative polarity). In about 24 hours, the arrival of a high speed stream is expected.

地磁

Geomagnetic conditions have been quiet (Kp and B_Bel between 0 and 2). Similar conditions are expected until the arrival of the high speed solar wind stream on 26 August (mostly active conditions expected then).

質子通量水平

The greater than 10 MeV proton flux has been slowly and gradually increasing since 22 August, and it is now close to the 10 pfu threshold. A warning condition forecast is issued for the next 48 hours.

地球靜止軌道上的電子通量

The greater than 2 MeV electron flux as measured by GOES 18 and 19 remained below the 1000 pfu alert threshold (except for a minimal crossing of the threshold around 16:00 and 23:00 UTC on 24 August), similar conditions expected for the next 24 hours. The 24 h electron fluence was at normal levels and is expected to remain so.

今日估計的國際太陽黑子數（ISN）：136，基於26個觀測站。

太陽活動指數 24 Aug 2025

卡塔尼亞沃爾夫數	///
10厘米太陽通量	152
AK Chambon La Forêt	008
AK Wingst	006
估計地磁Ap指數	005
估計國際太陽黑子數	111 - 基於29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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