查看星期一, 30 3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 Mar 30 1230 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

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

太陽質子

Quiet

	10公分通量	Ap
30 Mar 2015	142	009
31 Mar 2015	139	029
01 Apr 2015	136	013

公告

Four sunspot groups are reported by Catania today. The strongest flare during the last 24 hours was the C4.7 flare peaking at 01:52 UT in the NOAA AR 2303 that just passed behind the north-west solar limb (and therefore does not have a Catania number anymore). We expect flaring activity on the low C-level in the next 48 hours. A partial halo CME was first seen in the SOHO/LASCO C2 field of view at 18:24 UT on March 29. It had the angular width of around 190 degrees and the plane-of-the-sky projected speed of around 700 km/s. SDO/AIA data indicate that this was a far-side event. It will therefore not arrive at the Earth and have no geomagnetic consequences. The Earth is currently inside a slow (around 340 km/s) solar wind flow with average (around 6 nT) interplanetary magnetic field magnitude. The geomagnetic conditions are quiet and are expected to remain so until the arrival of a fast flow from a low-latitude extension of the southern polar coronal hole later today or early tomorrow. Geomagnetic disturbance up to the minor storm level is expected.

今日估計的國際太陽黑子數（ISN）：043，基於17個觀測站。

太陽活動指數 29 Mar 2015

卡塔尼亞沃爾夫數	///
10厘米太陽通量	145
AK Chambon La Forêt	013
AK Wingst	012
估計地磁Ap指數	013
估計國際太陽黑子數	053 - 基於12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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