查看星期一, 24 3月 2025歷史檔案

SIDC 太陽影響數據分析中心的每日公告

發布時間: 2025 Mar 24 1317 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
24 Mar 2025	167	010
25 Mar 2025	165	028
26 Mar 2025	165	031

太陽活動區和耀斑

Solar flaring activity was low over the past 24 hours, with only C-class flares identified. The largest flare was a C5.2 flare (SIDC Flare 3895) peaking at 07:37 UTC on March 24, which was produced by SIDC Sunspot Group 412 (NOAA Active Regions 4002, 4035). During the flare, the source region (SIDC 412) of the flare had beta configuration of its photospheric magnetic field. A total of 8 numbered sunspot groups were identified on the disk over the past 24 hours. SIDC Sunspot Group 450 (NOAA Active Region 4036) is the complex region with their beta-gamma magnetic configurations. Solar flaring activity is expected to be low over the next 24 hours, with C-class flares very likely and a chance for M-class flares.

日冕物質拋射

All CMEs detected in the available coronagraph observations during the last 24 hours were narrow and not Earth-directed.

日冕洞

SIDC Coronal Holes 82 (positive polarity) began to traverse the central meridian on March 24, and the SIDC Coronal Holes 60 (positive polarity) is still crossing the central meridian. The associated high speed streams are expected to arrive at Earth from March 25.

太陽風

Over the past 24 hours, the solar wind parameters were disturbed under the influence of an interplanetary coronal mass ejection (ICME) that departed the Sun from Mar 21. The solar wind speed ranged between 345 km/s to 440 km/s. The North-South component (Bz) ranged between -10 and 13 nT. The interplanetary magnetic field ranging from 4 nT to 17 nT. The solar wind speed may increase if the high speed stream from the coronal holes, which crossed the central meridian on Mar 19 (negative polarity) and Mar 22 (positive polarity) hits the Earth in the coming 24 hours.

地磁

Geomagnetic conditions were quiet to active conditions (NOAA Kp and K_BEL 1 to 4) both globally and locally, due to impact of ICME that departed the Sun from Mar 21. In the next 24 hours, we expect to see active conditions if the high speed stream from the coronal holes, which crossed the central meridian on Mar 19 (negative polarity) and Mar 22 (positive polarity), hits the Earth.

質子通量水平

The greater than 10 MeV GOES proton flux was below the threshold level over the past 24 hours and is expected to remain so for the next 24 hours.

地球靜止軌道上的電子通量

The greater than 2 MeV electron flux, as measured by the GOES-16 satellite, was below the 1000 pfu threshold level over the past 24 hours. However, greater than 2 MeV electron flux, as measured by the GOES-18 satellite, reached above the threshold level at 20:15:50 UTC on Mar 23 and dropped below the threshold level at 22:00 UTC on Mar 23. The electron flux is expected to remain below the threshold in the coming 24 hours.

今日估計的國際太陽黑子數（ISN）：085，基於14個觀測站。

太陽活動指數 23 Mar 2025

卡塔尼亞沃爾夫數	///
10厘米太陽通量	168
AK Chambon La Forêt	020
AK Wingst	011
估計地磁Ap指數	011
估計國際太陽黑子數	135 - 基於20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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