查看星期六, 28 12月 2013歷史檔案

SIDC 太陽影響數據分析中心的每日公告

發布時間: 2013 Dec 28 1223 UTC

SIDC太陽影響數據分析中心的預報

太陽閃焰

Eruptive (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
28 Dec 2013	133	001
29 Dec 2013	133	001
30 Dec 2013	133	005

公告

There were six C flares on the Sun during the past 24 hours. The brightest one was a C2.3 flare released by NOAA AR 11934, which peaked at 23:36 UT on December 27. Since AR 11934 and 11936 are still showing flux emergence, the probability for C flares over the next 48 hours is high (around 90%) and for M flares around 25%. Over the past 24 hours, the solar wind speed as observed by ACE gradually decreased from about 310 km/s to about 280 km/s. Around 18h UT on December 27, the magnitude of the Interplanetary Magnetic Field dropped suddenly from about 8 nT to about 3 nT. A continuation of nominal solar wind conditions is expected on December 28-30. Geomagnetic activity has been quiet over the past 24 hours (NOAA Kp between 0 and 2). Quiet geomagnetic conditions (K Dourbes < 4) are expected on December 28, 29, and 30, with a slight chance of active conditions (K Dourbes = 4) in the first half of December 30 (in case the Earth suffers a glancing blow from the CME first observed by LASCO C2 at 7:36 UT on December 26).

今日估計的國際太陽黑子數（ISN）：066，基於17個觀測站。

太陽活動指數 27 Dec 2013

卡塔尼亞沃爾夫數	///
10厘米太陽通量	131
AK Chambon La Forêt	005
AK Wingst	002
估計地磁Ap指數	002
估計國際太陽黑子數	077 - 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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