查看星期四, 22 8月 2024歷史檔案

SIDC 太陽影響數據分析中心的每日公告

發布時間: 2024 Aug 22 1231 UTC

SIDC太陽影響數據分析中心的預報

太陽閃焰

M-class flares expected (probability >=50%)

地磁

Quiet (A<20 and K<4)

太陽質子

Quiet

	10公分通量	Ap
22 Aug 2024	235	011
23 Aug 2024	233	010
24 Aug 2024	233	007

太陽活動區和耀斑

Solar flaring activity was high over the past 24 hours. The largest flare was a M5.1-flare, with peak time 22:08 UTC on August 21 2024, from NOAA AR 3796 (beta-gamma). There are currently 11 numbered active regions on the visible disk. NOAA AR 3784 has now rotated over the west limb. NOAA AR 3796 and 3790 are the most complex AR (beta- gamma). The solar flaring activity is expected to be at moderate levels over the next 24 hours with C-class flares expected, M-class flares probable and a small chance of X-class flares.

日冕物質拋射

There was an eruption seen in AIA/SDO 193 on August 21 at 18:00 UTC on the center of the disk, but no associated Coronal Mass Ejection (CME) has yet been observed in the available coronagraph images. No other earth-directed CMEs have been observed.

太陽風

The solar wind at the Earth remained slow over the last 24 hours. The solar wind speed was around 350 km/s and the interplanetary magnetic field was stable around 7nT. The Bz reached a minimum value of -7nT. Small enhancements of the solar wind speed may occur on August 22 and 23 due to a possible high-speed-stream arrival associated with the coronal holes that crossed the central meridian on August 19 and August 20 respectively.

地磁

Geomagnetic conditions were both globally and locally mainly quiet to unsettled (Kp 3+ and K Bel 3), which a short active period locally (K Bel 4). Geomagnetic conditions may reach active levels on the 22 and 23 August, due to possible high-speed stream arrivals.

質子通量水平

The greater than 10 MeV proton flux remained below the 10 pfu threshold and is expected to remain so over the next 24 hours.

地球靜止軌道上的電子通量

The greater than 2 MeV electron flux remained below the 1000 pfu alert threshold, and is expected to remain below the threshold during the next 24 hours. The 24h electron fluence was at normal levels and is expected to remain so.

今日估計的國際太陽黑子數（ISN）：214，基於17個觀測站。

太陽活動指數 21 Aug 2024

卡塔尼亞沃爾夫數	///
10厘米太陽通量	239
AK Chambon La Forêt	015
AK Wingst	010
估計地磁Ap指數	010
估計國際太陽黑子數	211 - 基於23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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