查看星期日, 21 1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 Jan 21 1253 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
21 Jan 2024	166	007
22 Jan 2024	166	015
23 Jan 2024	166	020

太陽活動區和耀斑

Solar flaring activity over the past 24 hours was at low levels with several C-class flares. The bipolar NOAA Active Region 3559 was the most productive. It produced the larger flare, a C6.3-class flare with a peak time of 02:02 UTC on January 21.The solar flaring activity is likely to be at low levels over the coming days with C-class flares and possible M-class flares.

日冕物質拋射

A partial halo coronal mass ejection (CME) was observed directed to the south-east in SOHO/LASCO C2 chronograph images on January 20, at 09:24 UTC. The projected angular width is 151 degrees, and the projected speed is 631 km/s as estimated by SIDC/CACTUS tool. The source of this CME is a filament eruption. Due to the location to the filament, near the central meridian, the CME is heading towards Earth and is expected to impact the solar wind condition near Earth in 1-2 days from now, with a possible also some geomagnetic impact. Another partial halo CME was observed directed to the East in SOHO/LASCO C2 chronograph images on January 21, at 00:24 UTC. The projected angular width is 186 degrees, and the projected speed is 480 km/s as estimated by SIDC/CACTUS tool. Analysis of the event is ongoing.

太陽風

Slow solar wind conditions were recorded over the past 24 hours. The solar wind speed as measured by DSCOVR ranged between 350 km/s and 470 km/s. The total interplanetary magnetic field was below 6 nT, and the Bz (north-south) component fluctuating between -6 nT and 4 nT. Slow solar wind conditions are expected for the next 24 hours. The CME from January 20, at 09:24 UTC is expected to impact the solar wind condition near Earth on the 22-23 of January.

地磁

The geomagnetic conditions over the past 24 hours were quiet (NOAA-Kp and K-Bel 1-2). Mostly quiet conditions are expected in the next 24 hours.

質子通量水平

The greater than 10 MeV protons flux where at background levels. It is expected to be at background levels in the next 24 hours.

地球靜止軌道上的電子通量

The greater than 2 MeV GOES 16 electron flux was below the 1000 pfu threshold and is expected to remain so in the next 24 hours. The 24h electron fluence was at nominal level and is expected to remain so in the next 24 hours.

今日估計的國際太陽黑子數（ISN）：164，基於05個觀測站。

太陽活動指數 20 Jan 2024

卡塔尼亞沃爾夫數	///
10厘米太陽通量	166
AK Chambon La Forêt	007
AK Wingst	007
估計地磁Ap指數	006
估計國際太陽黑子數	126 - 基於16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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