查看星期六, 29 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 29 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
29 Nov 2025	157	010
30 Nov 2025	165	010
01 Dec 2025	170	008

太陽活動區和耀斑

Solar flaring activity was high over the past 24 hours, with 3 M-class flares identified. SIDC Sunspot Group (SG) 709 (NOAA Active Region 4294, Beta magnetic configuration) emitted all the M-class and all but one of the C-class flaring activity of the past 24 hours, although it remains partially obscured by the eastern solar limb. The M-class flares of the past 24 hours were SIDC flares 6228 (an M5.9 on 28 Nov at 22:22 UTC), 6230 (an M1.6 on 29 Nov at 00:02), and 6232 (an M1.5 on 29 Nov at 04:20 UTC). SIDC SG 709 is expected to increase its activity in the next 24 hours as a larger portion of it will become visible from L1. M-class flares are expected and there is still a small chance of an X-class flare.

日冕物質拋射

No Earth-directed Coronal Mass Ejections (CME) were observed in the last 24 hours.

太陽風

Over the past 24 hours, solar wind parameters (ACE and DSCOVR) continued to reflect the waning influence of a high-speed stream (HSS). The solar wind speed gradually decreased from about 680 km/s to 600 km/s. The interplanetary magnetic field (B) varied between 3 and 7 nT and its North- South component (Bz) fluctuated between -6 and 5 nT. The SW speed is expected to continue its slow decline and the magnetic field is expected continue at similar levels in the next 24 hours.

地磁

The global geomagnetic conditions fluctuated between unsettled and active values (NOAA Kp 3- to 4) over the past 24 hours. During the same period the local conditions registered quiet and unsettled values (K BEL 2 to 3). A similar pattern is expected in the next 24 hours, both for the global and local conditions.

質子通量水平

The greater than 10 MeV proton flux, as measured by the GOES-19 satellite, was at background levels over the past 24 hours and is likely to remain so in the next 24 hours. Nevertheless there is a small chance that a proton event, associated with SIDC SG 709, might occur during the next 24 hours.

地球靜止軌道上的電子通量

The greater than 2 MeV electron flux, as measured by GOES-19, was above the 1000 pfu threshold during the past 24 hours with a peak value of 15000 pfu on 29 Nov at 04:30 UTC. The electron flux is expected to feature a further increase over the next day. The 24-hour electron fluence was at moderate levels during the past 24 hours. It is expected to increase further in the next 24 hours and reach high levels.

今日估計的國際太陽黑子數（ISN）：089，基於09個觀測站。

太陽活動指數 28 Nov 2025

卡塔尼亞沃爾夫數	108
10厘米太陽通量	138
AK Chambon La Forêt	029
AK Wingst	021
估計地磁Ap指數	024
估計國際太陽黑子數	085 - 基於17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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