查看星期六, 20 7月 2013歷史檔案

SIDC 太陽影響數據分析中心的每日公告

發布時間: 2013 Jul 20 1408 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

Active conditions expected (A>=20 or K=4)

太陽質子

Quiet

	10公分通量	Ap
20 Jul 2013	114	015
21 Jul 2013	113	015
22 Jul 2013	113	012

公告

The only C-class flare reported during the last 24 hours was C2.1 flare originating from the NOAA AR 1793. This active region currently has beta- gamma configuration of the photosperic magnetic field and the potential to produce C-class and possibly M-class flares. The newly arrived data showed that the CME on July 18 associated with the prominence eruption on the east solar limb, is most probably not Earth-directed. The Earth is still inside the fast speed stream due to the low-latitude coronal hole in the northern hemisphere. At the moment the solar wind speed is 530 km/s and the interplanetary magnetic field (IMF) is rather stable with the magnitude of about 2 nT. We expect unsettled to active geomagnetic conditions due to the currently ongoing influence of the fast stream. The arrival of the fast flow from the low-latitude coronal hole (also crossing the equator) in the southern hemisphere, which just reached the central meridian is expected on July 23.

今日估計的國際太陽黑子數（ISN）：037，基於12個觀測站。

太陽活動指數 19 Jul 2013

卡塔尼亞沃爾夫數	///
10厘米太陽通量	114
AK Chambon La Forêt	023
AK Wingst	020
估計地磁Ap指數	019
估計國際太陽黑子數	058 - 基於25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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