查看星期五, 17 1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 Jan 17 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

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

太陽質子

Quiet

	10公分通量	Ap
17 Jan 2025	207	021
18 Jan 2025	220	022
19 Jan 2025	230	007

太陽活動區和耀斑

Solar flaring activity was moderate over the past 24 hours, with 4 M-class flares identified. The largest flare was a M2.0 flare (SIDC Flare 3294) peaking on January 17 at 09:19 UTC, which was produced by SIDC Sunspot Group 378 (NOAA Active Region 3964). A total of 6 numbered sunspot groups were identified on the disk over the past 24 hours. SIDC Sunspot group 378 (NOAA AR 3964) and SIDC Sunspot group 346 (NOAA AR 3961) are responsible for the majority of the flaring activity. The solar flaring activity is expected to be at moderate levels over the coming day with C-class flares and M-class flares expected and C-class flares possible.

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

The large east-west elongated negative polarity equatorial coronal hole (SIDC Coronal Hole 87) has finished crossing the central meridian. A high-speed stream from this coronal hole may enhance the solar wind environment near Earth during the coming days.

太陽風

Slightly enhanced solar wind conditions are recorded over the past 24 hours, with solar wind speed that gradually increased to around 530 km/s and the interplanetary magnetic field of 10nT with the Bz reaching a minimum value of -10 nT. Further enhancements of the solar wind speed are possible in the next 24h, due to the potential influence of the high-speed stream (HSS) associated with the coronal hole, which is crossing the central meridian since 11 Jan 2025.

地磁

Geomagnetic conditions were globally and locally unsettled to active (Kp 4 and K Bel 4). Quiet to active conditions are expected for the next 24 hours.

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 16 remained below the 1000 pfu alert threshold, and it is expected to remain below the threshold during the next 24 hours. The 24h 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）：157，基於04個觀測站。

太陽活動指數 16 Jan 2025

卡塔尼亞沃爾夫數	///
10厘米太陽通量	208
AK Chambon La Forêt	///
AK Wingst	014
估計地磁Ap指數	013
估計國際太陽黑子數	130 - 基於10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

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