查看星期四, 23 7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 Jul 23 1230 UTC

SIDC太陽影響數據分析中心的預報

太陽閃焰

Quiet conditions (<50% probability of C-class flares)

地磁

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

太陽質子

Quiet

	10公分通量	Ap
23 Jul 2015	090	032
24 Jul 2015	093	019
25 Jul 2015	095	016

公告

The two currently visible sunspot groups are further declining. A small active region is near the southeast limb. No C-class flares or earth- directed coronal mass ejections (CMEs) were observed.

Quiet flaring conditions are expected, with an increasing chance on an isolated C-class flare with the possible return of old active regions over the east limb during the next few days.

The glancing blow from the 19 July CME resulted in somewhat intenser geomagnetic conditions than expected. Wind speed gradually picked up from about 340 km/s around 15:30UT to a maximum near 480 km/s around 06:00UT. Bz was mostly negative from 21:00-23:00UT at -9 nT, and especially from 03:00-07:00UT at a constant -11 nT. Minor storm conditions were recorded in Dourbes at 08:00UT, and globally during the 06:00-09:00UT interval. Starting shortly after 08:00UT, the solar wind speed started to increase again from about 400 km/s to its current values between 450 and 500 km/s, while Bz is fluctuating between -6 and +6 nT.

Mostly quiet to active geomagnetic conditions are expected, with a chance on a minor storming period in response to the high speed stream from the positive CH on the northern solar hemisphere.

今日估計的國際太陽黑子數（ISN）：032，基於24個觀測站。

太陽活動指數 22 Jul 2015

卡塔尼亞沃爾夫數	038
10厘米太陽通量	089
AK Chambon La Forêt	021
AK Wingst	010
估計地磁Ap指數	012
估計國際太陽黑子數	039 - 基於26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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