查看星期五, 24 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 24 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

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

太陽質子

Quiet

	10公分通量	Ap
24 Jul 2015	091	013
25 Jul 2015	094	018
26 Jul 2015	097	009

公告

There are currently 4 small sunspot groups visible on the solar disk. NOAA 2389, still close to the southeast limb, seems to show some mixed magnetic polarities. It was the source of the sole C-class flare of the period (C1.0 at 03:12UT). No earth-directed coronal mass ejections (CMEs) were observed.

There's a chance on another isolated C-class flare.

Solar wind speed gradually declined from values between 500 and 550 km/s to its current 400 km/s. Bz fluctuated between -8 and +6 nT. Active episodes were observed between 17:00-21:00UT. A small equatorial positive coronal hole is transiting the central meridian.

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

今日估計的國際太陽黑子數（ISN）：037，基於15個觀測站。

太陽活動指數 23 Jul 2015

卡塔尼亞沃爾夫數	029
10厘米太陽通量	089
AK Chambon La Forêt	021
AK Wingst	023
估計地磁Ap指數	019
估計國際太陽黑子數	033 - 基於29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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