查看星期一, 12 10月 2015歷史檔案

SIDC 太陽影響數據分析中心的每日公告

發布時間: 2015 Oct 12 1230 UTC

SIDC太陽影響數據分析中心的預報

太陽閃焰

C-class flares expected, (probability >=50%)

地磁

Minor storm expected (A>=30 or K=5)

太陽質子

Quiet

	10公分通量	Ap
12 Oct 2015	089	016
13 Oct 2015	093	034
14 Oct 2015	097	027

公告

The 4 sunspot groups currently visible on the solar disk are quiet. An active region (AR) is approaching the east limb and produced the only C-class flare of the period: C3.2 at 22:29UT. No earth-directed coronal mass ejections (CMEs) have been observed.

C-class flares are expected, with a small chance on an M-class flare from the AR just behind the east limb.

Solar wind speed continued its decline to values around 440 km/s until about 07:00UT, when a gradual increase was observed up to its current 500 km/s. Bz oscillated between -7 and +6 nT, with a sustained negative period at around -7nT between 08:00 and 11:00UT. The interplanetary magnetic field (IMF) was mostly directed away from the Sun (positive). Geomagnetic conditions ranged from quiet to unsettled, with a minor storming episode (Kp=5) during the 09-12UT interval. Active episodes were observed at Dourbes shortly before midnight. The high speed wind stream (HSS) from a wide northern coronal hole (CH) is expected to arrive later today and to continue possibly for the next two days.

Unsettled to active geomagnetic conditions are expected, with a good chance on minor geomagnetic storming episodes from the influence of the CH HSS.

今日估計的國際太陽黑子數（ISN）：052，基於17個觀測站。

太陽活動指數 11 Oct 2015

卡塔尼亞沃爾夫數	///
10厘米太陽通量	085
AK Chambon La Forêt	021
AK Wingst	020
估計地磁Ap指數	018
估計國際太陽黑子數	027 - 基於19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

所有時間均採用 UTC 時間

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