查看星期三, 19 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 19 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
19 Nov 2025	132	008
20 Nov 2025	132	011
21 Nov 2025	132	010

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. SIDC Sunspot Group 693 (NOAA Active Region 4284) (Beta magnetic configuration) was the most active region over the past 24 hours, but only producing C-class flaring. The largest flare was a C9.9 flare (SIDC Flare 6135) peaking on November 19 at 09:53 UTC was from behind the east limb. Solar flaring activity is expected to be low over the next 24 hours, with C-class flares very likely and a small 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.

日冕洞

SIDC Coronal Hole 137 (mid-latitude coronal hole with a negative polarity) has finished it’s crossing of the central meridian. The influence of the associated high speed stream is expected to impact Earth during Nov 21 2025.

太陽風

Slow solar wind conditions were recorded over the past 24 hours. The interplanetary magnetic field was around 8 nT, with the Bz reaching a minimum value of +1nT. The solar wind velocity were around 400 km/s. Solar wind conditions may become slightly enhanced in the next 24 hours, in case of the arrival of the High speed stream associated with the SIDC coronal hole 136.

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 18 and GOES 19 remained below the 1000 pfu threshold. Electron flux levels are expected to remain below the 1000 pfu threshold over the next 24 hours. The 24-hour electron fluence remains at normal levels and is expected to remain at normal levels over the next 24 hours.

今日估計的國際太陽黑子數（ISN）：060，基於07個觀測站。

太陽活動指數 18 Nov 2025

卡塔尼亞沃爾夫數	///
10厘米太陽通量	120
AK Chambon La Forêt	005
AK Wingst	005
估計地磁Ap指數	004
估計國際太陽黑子數	066 - 基於16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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