查看星期日, 7 2月 2021歷史檔案

SIDC 太陽影響數據分析中心的每日公告

發布時間: 2021 Feb 07 1231 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

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

太陽質子

Quiet

	10公分通量	Ap
07 Feb 2021	073	022
08 Feb 2021	073	021
09 Feb 2021	074	021

公告

Solar activity was at low levels over the past 24 hours. There are no visible active regions. Solar activity is expected to remain at low levels.

No Earth directed Coronal Mass Ejections (CMEs) have been detected in the available coronagraphic imagery.

The greater than 10 MeV proton flux was at nominal levels over the past 24 hours and is expected to remain so for the next 24 hours. The greater than 2 MeV electron flux remained mostly below the 1000 pfu threshold during the past 24 hours. The electron flux could increase in the next period. The 24h electron fluence was at normal levels, it is expected to remain so in the next 24 h.

Over the past 24 hours, the solar wind speed ranged between 360 and 540 km/s. The total magnetic field strength fluctuated between 4 and 13 nT. Bz had a minimum value of -8 nT. The interplanetary magnetic field changed polarity from towards to away from the Sun (positive polarity). The Earth is inside a high speed solar wind stream, elevated solar wind speeds are expected for the next 24 hours.

Geomagnetic conditions reached active leves locally with k Dourbes between 1-4, NOAA Kp recorded values between 2-5. Similar conditions expected for the next 24 hours..

今日估計的國際太陽黑子數（ISN）：000，基於06個觀測站。

太陽活動指數 06 Feb 2021

卡塔尼亞沃爾夫數	///
10厘米太陽通量	073
AK Chambon La Forêt	026
AK Wingst	///
估計地磁Ap指數	009
估計國際太陽黑子數	000 - 基於11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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