查看星期五, 16 5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 May 16 1310 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

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

	10公分通量	Ap
16 May 2014	152	007
17 May 2014	148	008
18 May 2014	146	008

公告

The solar activity is very low. The strongest flare observed in last 24 hours was a C5.7 flare peaking at 07:04 UT this morning. The flare originated from the Catania sunspot group 43 (NOAA AR 2056) which still has beta-gamma configuration of its photospheric magnetic field. Currently available data show no clear signatures of CME possibly associated with this flare. The partial halo CME, first seen in the SOHO LASCO C2 field of view at 20:48 UT on May 15, had angular width of about 180 degrees and projected plane of the sky speed of about 600 km/s. The radio signature of the shock wave, i.e., type II radio burst was observed, associated with this CME. The radio bursts drift rate gives indication of the shock wave speed of about 900 km/s. From the currently available data it seems that the source region of this CME was just behind the east solar limb and the CME will therefore not arrive at the Earth. The Catania sunspot groups 43 and 47 (NOAA ARs 2056 and 2060, respectively) still have beta-gamma configuration of the photospheric magnetic field and they are situated in the western solar hemisphere. Therefore, we keep the warning conditions for a proton event. Earth is currently inside of a slow solar wind with a speed of about 350 km/s. The interplanetary magnetic field magnitude is at the moment 6 nT. The geomagnetic conditions are quiet and expected to remain so in the following hours.

今日估計的國際太陽黑子數（ISN）：094，基於18個觀測站。

太陽活動指數 15 May 2014

卡塔尼亞沃爾夫數	167
10厘米太陽通量	152
AK Chambon La Forêt	008
AK Wingst	///
估計地磁Ap指數	006
估計國際太陽黑子數	107 - 基於26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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