查看星期二, 5 10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 Oct 05 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

Quiet (A<20 and K<4)

太陽質子

Quiet

	10公分通量	Ap
05 Oct 2021	081	004
06 Oct 2021	080	004
07 Oct 2021	079	007

公告

The solar activity was quiet over the past 24 hours, with the X-ray flux below C-level. The sunspot groups (Catania sunspot group 54, NOAA 2880) continued to decay and did not show any significant flaring activities. The returning sunspot groups (Catania sunspot group 58, NOAA 2882) remained unipolar with a magnetic field configuration Alpha and did not show any significant flaring activities. The solar activity is expected to remain at low levels over the next 24 hours with a very small chance of C-class flare.

No Earth directed Coronal Mass Ejection (CME) has been observed in the available coronagraph 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 below the 1000 pfu and 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 fluence was at nominal levels in the past 24 hours, and is expected to stay at nominal levels in the next 24 hours.

The Earth is currently inside a slow solar wind speed regime. Over the past 24 hours, the solar wind parameters (as observed by ACE and DSCOVR) showed an ambient background solar wind flow: The solar wind speed ranged from 280 km/s to 350 km/s. The interplanetary magnetic field magnitude was below 4.0 nT with its Bz components fluctuating between -3.3 nT and 0.9 nT. Nominal solar wind regime is expected to persist in the next 24 hours.

The geomagnetic conditions were quiet to unsettled over the past 24 hours: Values of K-Dourbes and NOAA-Kp index between 1 and 3 were registered. Mostly quiet conditions with occasionally Unsettled conditions are expected as long as the Earth remains in slow solar wind speed regime.

今日估計的國際太陽黑子數（ISN）：029，基於16個觀測站。

太陽活動指數 04 Oct 2021

卡塔尼亞沃爾夫數	029
10厘米太陽通量	084
AK Chambon La Forêt	011
AK Wingst	006
估計地磁Ap指數	006
估計國際太陽黑子數	031 - 基於31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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