查看星期一, 29 3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 Mar 29 1241 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

Quiet (A<20 and K<4)

太陽質子

Quiet

	10公分通量	Ap
29 Mar 2021	076	003
30 Mar 2021	076	004
31 Mar 2021	076	007

公告

Solar activity was at low levels over the past 24 hours. The sunspot (Catania 83, NOAA-AR 2812) did not produce any significant flare (above B-class). Solar activity is expected to remain at low levels.

No Earth-directed coronal mass ejections (CMEs) was observed in the available coronagraph 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 was below the 1000 pfu threshold in the past 24 hours and is expected to remain so during the next 24 hours. The 24h electron fluence is at normal levels in the last 24 hours and is expected to stay at normal levels for the next 24 hours.

Over the past 24 hours the solar wind parameters (ACE and DSCOVR) showed mostly nominal values: The solar wind speed decreased from 400 to 320 km/s . The interplanetary magnetic field magnitude was below 5 nT, and Bz component varied between -3 nT and 3 nT. The interplanetary magnetic field phi angle had a mostly negative polarity (towards the Sun). Slight enhancement due to the high-speed stream associated with the small patchy equatorial coronal holes (in the south hemisphere, with negative polarity) is possible but not very likely.

Geomagnetic conditions were quiet (Kp and K-Dourbes: 0-2). Mostly quiet geomagnetic conditions are expected for the next 24 hours.

今日估計的國際太陽黑子數（ISN）：011，基於23個觀測站。

太陽活動指數 28 Mar 2021

卡塔尼亞沃爾夫數	///
10厘米太陽通量	075
AK Chambon La Forêt	008
AK Wingst	007
估計地磁Ap指數	005
估計國際太陽黑子數	011 - 基於22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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