查看星期四, 20 11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 Nov 20 1231 UTC

SIDC太陽影響數據分析中心的預報

太陽閃焰

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

地磁

Quiet (A<20 and K<4)

太陽質子

Quiet

	10公分通量	Ap
20 Nov 2025	134	012
21 Nov 2025	134	011
22 Nov 2025	136	007

太陽活動區和耀斑

Solar flaring activity was low over the past 24 hours, with only C-class flares identified. A total of 6 numbered sunspot groups were identified on the disk over the past 24 hours, all having alpha or beta magnetic configuration. Solar flaring activity is expected to be low over the next 24 hours, with C-class flares very likely and a chance for M-class flares.

日冕物質拋射

No new Earth-directed Coronal Mass Ejections (CMEs) have been detected in the available coronagraph images.

太陽風

Slow solar wind conditions were recorded over the past 24 hours. The interplanetary magnetic field was around 8 nT then at 07:30 UTC started to rise to 14nT. The Bz reached a minimum value of -1nT. The solar wind velocity was around 400 km/s. Slow solar wind conditions are expected in the next 24 hours.

地磁

Geomagnetic activity was globally and locally quiet to unsettled over the past 24 hours. Geomagnetic conditions are expected to remain quiet to unsettled in the next 24h.

質子通量水平

The greater than 10 MeV proton flux remained below the 10 pfu threshold and is expected to remain so over the next days.

地球靜止軌道上的電子通量

The greater than 2 MeV electron flux measured by GOES 19 was briefly above the 1000 pfu threshold on Nov 19 around 12:00 UTC and Nov 20 around 11:50 . Electron flux levels are expected to cross briefly the 1000 pfu threshold over the next 24 hours. The 24-hour electron fluence was at moderate levels and is expected to remain at moderate levels over the next 24 hours.

今日估計的國際太陽黑子數（ISN）：061，基於09個觀測站。

太陽活動指數 19 Nov 2025

卡塔尼亞沃爾夫數	///
10厘米太陽通量	123
AK Chambon La Forêt	///
AK Wingst	003
估計地磁Ap指數	002
估計國際太陽黑子數	064 - 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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