查看星期一, 21 2月 2022歷史檔案

SIDC 太陽影響數據分析中心的每日公告

發布時間: 2022 Feb 21 1231 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
21 Feb 2022	095	009
22 Feb 2022	096	011
23 Feb 2022	096	011

公告

The Sun produced no C flares in the past 24 hours. The chance for a C flare in the next 24 hours is estimated at 50%, mainly from beta region NOAA 2954.

No Earth-directed Coronal Mass Ejections (CMEs) were observed in available coronagraphic imagery.

The greater than 10 MeV proton flux was at nominal levels in the past 24 hours, and is expected to stay at nominal levels in the next 24 hours. The greater than 2 MeV electron flux was at nominal levels in the past 24 hours. There is a slight chance that it will exceed the 1000 pfu threshold in the next 24 hours. The greater than 2 MeV electron fluence was at nominal levels in the past 24 hours, and is expected to stay at nominal levels in the next 24 hours.

The solar wind speed as registered by DSCOVR varied between about 470 and 570 km/s in the past 24 hours, with current values near 540 km/s. The magnitude of the Interplanetary Magnetic Field near Earth (IMF) varied between about 3 and 9 nT (with current values around 6 nT), while its orientation was predominantly away from the Sun. There were no extended time intervals with Bz below -5 nT. A continuation of these enhanced solar wind conditions (under the influence of a high speed stream from a positive polarity equatorial coronal hole) is expected in the next days.

Quiet to unsettled geomagnetic conditions (K-BEL between 1 and 3; NOAA Kp between 1 and 4) were registered in the past 24 hours. Active intervals (K-BEL = 4) are possible on February 21, 22 and 23, with a slight chance for minor storm intervals (K-BEL = 5).

今日估計的國際太陽黑子數（ISN）：049，基於08個觀測站。

太陽活動指數 20 Feb 2022

卡塔尼亞沃爾夫數	///
10厘米太陽通量	093
AK Chambon La Forêt	015
AK Wingst	014
估計地磁Ap指數	013
估計國際太陽黑子數	045 - 基於16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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