查看星期三, 12 3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 Mar 12 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
12 Mar 2025	165	013
13 Mar 2025	170	014
14 Mar 2025	180	007

太陽活動區和耀斑

Solar flaring activity was moderate over the past 24 hours, with 1 M-class flare identified. The largest flare was a M1.1 flare (SIDC Flare 3800) peaking on March 11 at 13:04 UTC, which was produced by SIDC Sunspot Group 431 (NOAA Active Region 4024). A total of 11 numbered sunspot groups were identified on the disk over the past 24 hours. SIDC Sunspot Group 428 (NOAA Active Region 4019) is the most complex active region ( Beta-Delta).

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

The solar wind at the Earth is slow, with speeds around 460 km/s and interplanetary magnetic field slightly increased from 6 to 12 nT with the Bz reaching a minimum value of -10 nT. In the next 24h, the solar wind speed may increase due to the influence of the high-speed streams associated with the coronal holes (which reached the central meridian in March 10).

地磁

Geomagnetic conditions reached active levels (Kp 4- and K Bel 4) early on March 12. Geomagnetic conditions may reach again active levels late on March 12, due to a high-speed stream arrival.

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 was above the 1000 pfu threshold on March 11 and is expected to remain so in the upcoming days. The 24h electron fluence was at nominal level and is expected to remain so in the next days.

今日估計的國際太陽黑子數（ISN）：156，基於11個觀測站。

太陽活動指數 11 Mar 2025

卡塔尼亞沃爾夫數	///
10厘米太陽通量	161
AK Chambon La Forêt	022
AK Wingst	009
估計地磁Ap指數	011
估計國際太陽黑子數	141 - 基於14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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