查看星期四, 20 2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 Feb 20 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

Quiet

	10公分通量	Ap
20 Feb 2025	178	010
21 Feb 2025	176	007
22 Feb 2025	174	007

太陽活動區和耀斑

A total of 8 numbered sunspot groups were identified on the disk over the past 24 hours. Solar activity has been low. The largest flare was a C8.1 flare (SIDC Flare 3659) peaking on February 19 at 23:45 UTC, which was produced by SIDC Sunspot Group 346 (NOAA Active Regions 3933, 3961, 3990). This sunspot group, together with SIDC Sunspot Group 405 (NOAA Active Region 3996, Beta-Gamma magnetic configuration) and SIDC Sunspot Group 408 (NOAA Active Region 3998, Beta-Delta magnetic configuration) have potential for creating larger flares. 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 CMEs were observed in the last 24 hours.

太陽風

The solar wind speed at Earth has been steady at around 480 km/s in the last 24 hours, with an interplanetary magnetic field currently around 5 nT. Similar conditions, with probably lower solar wind speeds, can be expected in the next 24 hours.

地磁

Geomagnetic conditions reached active levels globally and locally (Kp and K_Bel up to 4). Mostly quiet to unsettled conditions can be expected for the next 24 hours.

質子通量水平

The greater than 10 MeV proton flux was below the threshold level over the past 24 hours. It is expected to remain below the threshold level over the next 24 hours.

地球靜止軌道上的電子通量

The greater than 10 MeV GOES 16 and 18 electron flux has been below the threshold in the last 24 hours It is expected to remain below the threshold in the next 24 hours. The 24-hour electron fluence is currently at normal levels and is expected to remain so in the next 24 hours.

今日估計的國際太陽黑子數（ISN）：134，基於08個觀測站。

太陽活動指數 19 Feb 2025

卡塔尼亞沃爾夫數	///
10厘米太陽通量	178
AK Chambon La Forêt	026
AK Wingst	025
估計地磁Ap指數	024
估計國際太陽黑子數	117 - 基於13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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