查看星期六, 20 6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 Jun 20 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
20 Jun 2026	111	006
21 Jun 2026	113	007
22 Jun 2026	115	007

太陽活動區和耀斑

A total of 4 numbered sunspot groups were identified on the disk over the past 24 hours. An M1.3 flare (the largest of the period) was observed peaking on June 20 at 01:51 UTC, which was produced by SIDC Sunspot Group 897 (NOAA Active Region 4472) that rotated into view from the east limb. More M-class flares are possible in the coming 24 hours.

日冕物質拋射

A wide Coronal Mass Ejection (CME) with an angular width of approximately 90 degrees was detected by LASCO C2 at 02:12 UTC on 20 June. Associated with an M1.3 solar flare, this CME originated near the east limb and is directed eastward; no Earth arrival is expected. Shortly after, at 03:12 UTC, a second CME emerged toward the northeast. While spatial and temporal proximity causes these CMEs to appear merged in coronagraph imagery, they are distinct events. The second CME originated on the farside of the Sun and will not impact Earth.

太陽風

In the last 24 hours we saw a slight increase in solar wind speed (up to 450 km/s) and magnetic field (11 nT) related to the expected mild fast stream from SIDC Coronal Hole 169. The Earth is currently inside slow solar wind, the solar wind speed is around 400 km/s and the interplanetary magnetic field is at 7nT. Similar conditions can be expected for the next 24 hours.

地磁

Geomagnetic conditions were quiet to unsettled both at planetary and local levels (Kp and K_Bel up to 3). Similar conditions can be expected for the next 24 hours.

質子通量水平

The greater than 10 MeV proton flux, as measured by GOES-18, was below the 10 pfu 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 GOES-18 and GOES-19 was below the 1000 pfu alert threshold in the past 24 hours. The flux is expected to remain low over the next 24 hours. The 24-hour electron fluence was at normal levels over the past 24 hours 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）：089，基於20個觀測站。

太陽活動指數 19 Jun 2026

卡塔尼亞沃爾夫數	053
10厘米太陽通量	111
AK Chambon La Forêt	013
AK Wingst	008
估計地磁Ap指數	009
估計國際太陽黑子數	066 - 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

所有時間均採用 UTC 時間

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