查看星期三, 9 4月 2014歷史檔案

SIDC 太陽影響數據分析中心的每日公告

發布時間: 2014 Apr 09 1222 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
09 Apr 2014	130	004
10 Apr 2014	133	004
11 Apr 2014	135	005

公告

The Sun produced only one single C-class flare, originating from Catania sunspot region 13 (NOAA AR 2031). More C-class flares are expected during the next 48 hours, from Catania sunspot regions 8, 13 and 18 (NOAA ARs 2026, 2031 and 2032 respectively). There is also a slight chance for an M-class flare. A full halo CME was visible in coronagraphic imagery. It was first visible in LASCO C2 images at 23:48 UT, April 8 as a partial halo (angular width of around 200 degrees), and evolved further to a full halo CME. First measurements in STEREO B/COR2 were at 00:25 UT, April 9. It concerns a backsided CME and therefore we do not expect the CME to be geoeffective. Two recurrent coronal holes (centred near S45E05 and N25E05) have reached the central meridian and are expected to arrive near Earth during the second half of April 12. No Earth-directed CMEs were observed. Solar wind speed measured by ACE fluctuated between 380 and 500 km/s. The magnitude of the interplanetary magnetic field reached a maximum of 6 nT, with a mainly positive Bz component. Current magnetic conditions are quiet and are expected to remain so for the next 48 hours. The arrival of the CH high speed stream might result in active conditions from April 12 on.

今日估計的國際太陽黑子數（ISN）：069，基於23個觀測站。

太陽活動指數 08 Apr 2014

卡塔尼亞沃爾夫數	144
10厘米太陽通量	132
AK Chambon La Forêt	007
AK Wingst	004
估計地磁Ap指數	004
估計國際太陽黑子數	083 - 基於30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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