查看星期三, 26 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 26 1256 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

Minor storm expected (A>=30 or K=5)

太陽質子

Quiet

	10公分通量	Ap
26 Mar 2025	156	036
27 Mar 2025	155	064
28 Mar 2025	153	061

太陽活動區和耀斑

Solar flaring activity was moderate over the past 24 hours, with 1 M-class flare and several C-class flares identified. The largest flare was a M1.0 flare (SIDC Flare 3910) peaking at 08:09 UTC on March 26, which was produced by SIDC Sunspot Group 455 (NOAA Active Region 4043). During the flare, the source region (SIDC 455) of the flare had beta configuration of its photospheric magnetic field. A total of 4 numbered sunspot groups were identified on the disk over the past 24 hours. SIDC Sunspot Group 450 is the complex region with its beta-gamma magnetic configurations. The solar flaring activity is expected to be at low to moderate levels over the next 24 hours with C-class flares expected, M-class flares probable, and a little chance of X-class flares.

日冕物質拋射

No Earth-directed coronal mass ejections (CME) were detected in the available coronagraph observations during last 24 hours.

太陽風

Over the past 24 hours, the interplanetary magnetic field were enhanced possibly due to the arrival of high speed streams (HSSs) from the elongated, mid-latitude, positive polarity SIDC Coronal Holes 60 which started to cross the central meridian on Mar 22. The solar wind speed ranged from 310 km/s to 420 km/s and the interplanetary magnetic field ranged from 8 nT to 29 nT. The North-South component (Bz) ranged between -27 and 18 nT. Further enhanced solar wind parameters are expected with the HSSs from SIDC Coronal Holes 60, and also possibly with HSSs from the equatorial SIDC Coronal Holes 82 (positive polarity) which started to cross the central meridian on Mar 24.

地磁

Geomagnetic conditions were globally at quiet to minor storm conditions (NOAA Kp 2 to 5), and locally at quiet to active conditions (K_BEL 2 to 4) during the past 24 hours. It was due to the possible arrival of high speed streams (HSSs) from the elongated, mid-latitude, positive polarity SIDC Coronal Holes 60 which started to cross the central meridian on Mar 22. In the next 24 hours, active to moderate storm conditions (K 4 to 6) are possible with the further arrival of HSSs from SIDC Coronal Holes 60, and also possibly with HSSs from the equatorial SIDC Coronal Holes 82 (positive polarity) which started to cross the central meridian on Mar 24.

質子通量水平

The greater than 10 MeV GOES proton flux remained below the threshold level over the past 24 hours and is expected to remain so for the next 24 hours. However, a proton event over the next day cannot be excluded due to SIDC Sunspot Group 450 (NOAA Active Region 4036).

地球靜止軌道上的電子通量

The greater than 2 MeV electron flux, as measured by GOES-16 and GOES-18 satellites, remained below the 1000 pfu threshold level over the past 24 hours and is expected to remain so in the coming 24 hours. The 24h electron fluence is presently at normal level, and it is expected to remain so in 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 25 Mar 2025

卡塔尼亞沃爾夫數	///
10厘米太陽通量	156
AK Chambon La Forêt	025
AK Wingst	016
估計地磁Ap指數	018
估計國際太陽黑子數	083 - 基於22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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