查看星期四, 12 3月 2026歷史檔案

SIDC 太陽影響數據分析中心的每日公告

發布時間: 2026 Mar 12 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
12 Mar 2026	124	007
13 Mar 2026	120	014
14 Mar 2026	120	012

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 C4.0 flare (SIDC Flare 7173) peaking on March 12 at 10:46 UTC, which was produced by SIDC Sunspot Group 805 (NOAA Active Region 4384, magnetic type Beta). A total of 9 numbered sunspot groups were identified on the disk over the past 24 hours, all having alpha or beta magnetic configuration. 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

No Earth-directed Coronal Mass Ejections (CMEs) have been detected in the available coronagraph images over the past 24 hours.

日冕洞

A large positive polarity transequatorial coronal hole (SIDC Coronal Hole 154) is still crossing the central meridian. The associated high-speed stream is expected to arrive at Earth starting late on March 13.

太陽風

Over the past 24 hours, solar wind parameters (ACE and DSCOVR) were slow, with the solar wind speed reaching values up to 450 km/s. The interplanetary magnetic field remained weak, below 7 nT, with the Bz reaching a minimum value of - 5nT. Slow solar wind conditions are expected over the next 24 hours, with a chance of a weak enhancement from late on March 13 due to the arrival of a high-speed stream from the large positive polarity coronal hole (SIDC Coronal Hole 154).

地磁

Geomagnetic conditions were globally and locally quiet to unsettled (NOAA Kp = 3-, K_bel 2) over the past 24 hours. Mostly quiet to unsettled geomagnetic conditions are expected over the next 24 hours.

質子通量水平

The greater than 10 MeV proton flux, as measured by the GOES-19 satellite, was at background levels over the past 24 hours and is likely to remain so in the next 24 hours.

地球靜止軌道上的電子通量

The greater than 2 MeV electron flux measured by GOES-18 and GOES-19 was above the 1000 pfu threshold for the main part of the reporting period. The greater than 2 MeV electron flux may exceed the 1000 pfu threshold over the next 24 hours. The electron fluence was at moderate levels and is expected to remain at these levels over the next 24 hours.

今日估計的國際太陽黑子數（ISN）：104，基於21個觀測站。

太陽活動指數 11 Mar 2026

卡塔尼亞沃爾夫數	125
10厘米太陽通量	123
AK Chambon La Forêt	012
AK Wingst	010
估計地磁Ap指數	011
估計國際太陽黑子數	116 - 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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