查看星期三, 22 1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 Jan 22 1330 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
22 Jan 2014	150	010
23 Jan 2014	153	004
24 Jan 2014	153	003

公告

Twelve sunspot groups were reported by Catania today. None of them was particularly active during the past 36 hours: only a couple of weak C-class flares occurred (below C3.0). We expect flaring activity on the C-level, in particular in two active regions with beta-gamma configuration of the photospheric magnetic field (Catania numbers 14 and 17, NOAA ARs 1957 and 1959 respectively). A partial halo CME was detected by SOHO/LASCO on January 21. The CME first appeared in the LASCO C2 field of view at 21:17 UT. It had the angular width of around 230 degrees and the speed around 900 km/s. Inspection of STEREO/EUVI B data indicates that the CME was associated with a far side eruption (as seen from the Earth) starting around 21:06 UT, with the source region situated around S15W150. This CME will therefore not arrive at the Earth and have no geomagnetic consequences. The Earth is currently inside the fast (around 550 km/s) solar wind stream originating in the low-latitude coronal hole in the northern hemisphere. The interplanetary magnetic field (IMF) magnitude in the interaction region between the fast stream and the preceding slow wind reached 13 nT, but the IMF Bz component was fluctuating between positive and negative values. As a consequence, geomagnetic conditions did not go above the unsettled level (K = 3) as measured by Dourbes, IZMIRAN, and NOAA. Currently the IMF magnitude is around 6 nT. We expect quiet to unsettled geomagnetic conditions (K < 4), with isolated intervals of active conditions (K = 4) possible but not very likely.

今日估計的國際太陽黑子數（ISN）：113，基於16個觀測站。

太陽活動指數 21 Jan 2014

卡塔尼亞沃爾夫數	141
10厘米太陽通量	146
AK Chambon La Forêt	014
AK Wingst	008
估計地磁Ap指數	008
估計國際太陽黑子數	090 - 基於06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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