查看星期五, 1 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 01 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

Quiet (A<20 and K<4)

太陽質子

Quiet

	10公分通量	Ap
01 Oct 2021	095	007
02 Oct 2021	095	007
03 Oct 2021	095	007

公告

Two active regions (ARs) present on the visible solar disk. NOAA AR 2877 (beta-gamma magnetic field configuration) and 2880 (beta). The former produced a C1.2 flare peaking at 12:49 UT on 30 September. Over the next 24 hours, more C-class flares can be expected.

No Earth directed CMEs have been observed in the last 24 hours.

The greater than 10 MeV proton flux was at background levels in the past 24 hours, and is expected to stay there in the next 24 hours. The greater than 2 MeV electron flux remained below the 1000 pfu alert threshold, it may increase over the next 24 hours. The electron fluence was at normal levels over the past 24 hours, it may increase over the next 24 hours.

The CME from 28 September arrived to the Earth at 18:00 UT. It was a glancing blow with the bulk of the CME material passing to the south-west of the Earth. Magnetic field intensity increased to 14 nt (with Bz up to -6 nT) and solar wind speed reached 550 km/s. Over the next 24 hours we expect a return to slow solar wind conditions.

Geomagnetic conditions reached active levels (NOAA Kp and K Dourbes 1-4) over the past 24 hours. Quiet to unsettled conditions expected for the next 24 hours.

今日估計的國際太陽黑子數（ISN）：034，基於16個觀測站。

太陽活動指數 30 Sep 2021

卡塔尼亞沃爾夫數	057
10厘米太陽通量	095
AK Chambon La Forêt	020
AK Wingst	011
估計地磁Ap指數	010
估計國際太陽黑子數	045 - 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

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