查看星期三, 26 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 26 1231 UTC

SIDC太陽影響數據分析中心的預報

太陽閃焰

C-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
26 Nov 2025	116	024
27 Nov 2025	116	017
28 Nov 2025	114	017

太陽活動區和耀斑

Solar flaring activity was low over the past 24 hours, with several C-class flares recorded. The largest flare was a C2.2 flare (SIDC Flare 6199), peaking on November 26 at 03:00 UTC, associated with SIDC Sunspot Group 705 (NOAA Active Region 4290; magnetic type alpha). There are currently five numbered active regions on the visible solar disk. SIDC Sunspot Group 706 (NOAA Active Region 4291; magnetic type beta-gamma-delta) is the largest and most complex active region but produced only low-level C-class flares. Low flaring activity was also produced by SIDC Sunspot Group 703 (NOAA Active Region 4288; magnetic type alpha) and SIDC Sunspot Group 707 (NOAA Active Region 4292; magnetic type beta). Solar flaring activity is expected to be low over the next 24 hours, with C-class flares very likely and a chance for M-class flares.

日冕物質拋射

No Earth-directed coronal mass ejections (CMEs) have been identified in the available coronagraph imagery over the past 24 hours.

太陽風

Over the past 24 hours, solar wind parameters (ACE and DSCOVR) reflected the waning influence of a high-speed stream (HSS). The solar wind speed gradually decreased from about 830 km/s to 700 km/s. The interplanetary magnetic field remained weak, below 7 nT, and its southward component fluctuated between -6 nT and 6 nT. The magnetic field orientation was predominantly in the positive sector (field directed away from the Sun). Solar wind conditions are expected to remain slightly elevated over the next days under the continued influence of the high-speed stream.

地磁

Geomagnetic conditions were unsettled to active both globally and locally over Belgium (NOAA Kp = 3 to 4+; K-Bel = 3 to 4). Mostly unsettled to active geomagnetic conditions are expected over the next 24 hours.

質子通量水平

Over the past 24 hours the greater than 10 MeV GOES proton flux has been at nominal levels and is expected to remain at nominal levels over the next days.

地球靜止軌道上的電子通量

The greater than 2 MeV electron flux, as measured by GOES-18 and GOES-19, exceeded the 1000 pfu threshold over the past 24 hours. The electron flux is expected to continue exceeding this threshold over the next day. The 24-hour electron fluence was at normal to moderate levels and is expected to remain at moderate levels over the next day.

今日估計的國際太陽黑子數（ISN）：078，基於08個觀測站。

太陽活動指數 25 Nov 2025

卡塔尼亞沃爾夫數	///
10厘米太陽通量	116
AK Chambon La Forêt	034
AK Wingst	032
估計地磁Ap指數	034
估計國際太陽黑子數	102 - 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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