查看星期一, 29 12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 Dec 29 1219 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
29 Dec 2014	132	013
30 Dec 2014	131	008
31 Dec 2014	130	004

公告

There are currently 7 sunspot regions visible on the solar disk. Six low-level C-class flares were recorded over the observing period. NOAA 2248 produced the strongest flare (C3.3 peaking at 17:59UT). This group has some magnetic polarity mixing, just like NOAA 2251 which is also gradually increasing its sunspot area. The greater than 10 MeV proton flux gradually increased and was slighly enhanced starting from 15:00UT. With values just below 1 pfu (21:00-24:00UT), the maximum proton flux remained well below the event threshold. A 35-degrees long, but currently stable filament is visible in the northeast solar quadrant. Further C-class flaring is expected. Solar wind speed was fluctuating between 360 and 390 km/s until about 18:00UT, when it gradually started to increase to values averaging 570 km/s around 09:30UT. Initially (15:00-22:00UT), Bz fluctuated wildly between -10 and +10 nT. After midnight, the fluctuations attenuated to values between -5 and +7 nT. Active geomagnetic conditions were recorded (Kp=4), with locally brief periods of minor geomagnetic storming (Dourbes: K=5 at 20:00UT). The source of this high speed stream (HSS) is a coronal hole that passed the CM on 22-23 December. Unsettled geomagnetic conditions are expected, with an active period possible in the wake of the HSS. After that, quiet to unsettled conditions are expected to resume.

今日估計的國際太陽黑子數（ISN）：063，基於12個觀測站。

太陽活動指數 28 Dec 2014

卡塔尼亞沃爾夫數	///
10厘米太陽通量	133
AK Chambon La Forêt	019
AK Wingst	012
估計地磁Ap指數	011
估計國際太陽黑子數	072 - 基於22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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