查看星期三, 10 12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 Dec 10 1249 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

Warning condition (activity levels expected to increase, but no numeric forecast given)

	10公分通量	Ap
10 Dec 2025	181	012
11 Dec 2025	178	022
12 Dec 2025	176	012

太陽活動區和耀斑

Solar flaring activity was moderate over the past 24 hours, with four M-class flares. The strongest flare was an M1.9 flare (SIDC Flare 6377) peaking at 07:37 UTC on December 10, which was associated with SIDC Sunspot Group 709 (NOAA Active Region 4294, magnetic type beta-gamma-delta). There are currently seven numbered active regions on the solar disk. The most complex one is SIDC Sunspot Group 709 (NOAA Active Region 4294). SIDC Sunspot Group 719 and SIDC Sunspot Group 714 (NOAA Active Region 4300) have decayed into plage regions. SIDC Sunspot Group 713 (NOAA Active Region 4298) is currently rotating across the west limb. The solar flaring activity is expected to be moderate over the next 24 hours, with M-class flares very likely and a small chance for X-class flares.

日冕物質拋射

No Earth-directed Coronal Mass Ejections (CMEs) were observed in the available coronagraph imagery in the last 24 hours.

日冕洞

A northern, north-south elongated, negative polarity coronal hole (returning SIDC Coronal Hole 142) is crossing the central meridian. An associated high-speed stream may arrive at Earth starting from December 13.

太陽風

Over the past 24 hours, the solar wind parameters (ACE) reflected mostly slow solar wind conditions. A small increase was observed in the solar wind parameters around 03:00 UTC on December 10, possibly due to an ongoing, weak influence of an ICME arrival. Speed values increased from 370 km/s to 430 km/s. The interplanetary magnetic field values increased from 7 nT to 13 nT. The Bz component reached a minimum of -8 nT. The interplanetary magnetic field (IMF) angle was in the negative sector until around 05:00 UTC on December 10, when it shifted to the positive sector. Enhanced solar wind conditions may be expected over the next 24 hours, due to the small chance of arrival of a glancing blow associated with the Coronal Mass Ejection (SIDC CME 607, observed around 22:36 UTC on December 08).

地磁

Geomagnetic conditions globally and locally were mostly at quiet levels (NOAA Kp 1 to 3, K BEL 1 to 3). Quiet to active conditions (NOAA Kp 1 to 4), with a small chance of minor storm conditions, are expected over the next 24 hours due to the small chance of arrival of a glancing blow associated with the Coronal Mass Ejection (SIDC CME 607, observed around 22:36 UTC on December 08).

質子通量水平

The greater than 10 MeV proton flux was below the 10 pfu threshold level over the past 24 hours. It is expected to remain below the threshold level over the next 24 hours, pending no further eruptive activity from SIDC Sunspot Groups 709, 712 (NOAA Active Regions 4294, 4296).

地球靜止軌道上的電子通量

The greater than 2 MeV electron flux measured by GOES 18 and GOES 19 was close to the 1000 pfu threshold but remained mostly below it in the last 24 hours. The greater than 2 MeV electron flux is expected to remain below the 1000 pfu threshold levels in the next 24 hours. The 24-hour electron fluence is presently at normal levels and is expected to remain so over the next 24 hours.

今日估計的國際太陽黑子數（ISN）：133，基於10個觀測站。

太陽活動指數 09 Dec 2025

卡塔尼亞沃爾夫數	182
10厘米太陽通量	183
AK Chambon La Forêt	010
AK Wingst	004
估計地磁Ap指數	003
估計國際太陽黑子數	154 - 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

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