查看星期日, 11 5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 May 11 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

Quiet (A<20 and K<4)

太陽質子

Quiet

	10公分通量	Ap
11 May 2025	131	006
12 May 2025	125	006
13 May 2025	120	005

太陽活動區和耀斑

Solar flaring activity was low over the past 24 hours, with approximately 10 C-class flares identified. SIDC Sunspot Group 469 (NOAA Active Region 4079, Beta-Gamma magnetic configuration) produced all the flaring activity, with the brightest flare being a C5 on 10 May at 16:21 UTC. For the next 24 hours and although in decline, SIDC Sunspot Group 469 is expected to continue its flaring activity at a C-class level.

日冕物質拋射

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

太陽風

During the past 24 hours the Solar Wind (SW) activity was affected by a weak High Speed Stream (HSS) that only had a short-lived effect. The SW speed initially increase to 550 km/s but has since dropped to 400 km/s. The interplanetary magnetic field (B) varied between 1 and 8 nT and its North-South component (Bz) fluctuated between -6 and 5 nT. Slow SW conditions are expected to prevail in the next 24 hours.

地磁

The geomagnetic conditions were globally and locally quiet to unsettled (NOAA Kp 1+ to 3+ and K BEL 2 to 3) during the past 24 hours. They are expected to be mostly quiet with brief periods of unsettled levels during the next 24 hours.

質子通量水平

The greater than 10 MeV proton flux, as measured by the GOES-19 satellite, was at nominal levels over the past 24 hours and is likely to remain so in 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 below but close to the 1000 pfu alerth threshold. It is expected to drop further during the next 24 hours. The 24-hour electron fluence dropped from moderate to normal levels during the past 24 hours. It is expected to drop further and remain at normal levels in the next 24 hours.

今日估計的國際太陽黑子數（ISN）：072，基於19個觀測站。

太陽活動指數 10 May 2025

卡塔尼亞沃爾夫數	///
10厘米太陽通量	134
AK Chambon La Forêt	016
AK Wingst	012
估計地磁Ap指數	014
估計國際太陽黑子數	077 - 基於29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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