查看星期三, 15 4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 Apr 15 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
15 Apr 2026	099	007
16 Apr 2026	099	007
17 Apr 2026	097	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. No C-class flares or larger were detected in the last 24 hours. Solar flaring activity is expected to be low over the next 24 hours.

日冕物質拋射

No Earth-directed CMEs were observed in the last 24 hours.

日冕洞

There is a large negative polarity coronal hole (SIDC Coronal Hole 147) located in the northern hemisphere that crossed the central meridian today. In the sourthern hemisphere, there is a high latitude coronal hole (with its northernmost part at 30 degrees latitude) with positive polarity (SIDC Coronal Hole 159).

太陽風

The solar wind speed is low, around 370 km/s with interplanetary magnetic field magnitude of 5 nT, with positive polarity (away from the Sun). There are low chances that a high speed solar wind stream from a high latitude (southern) coronal hole (SIDC coronal hole 159) reaches the Earth within 24 h. Otherwise similar slow wind conditions are expected for the next 24 hours.

地磁

Geomagnetic conditions have been quiet (Kp and K_BEL up to 2). 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 have remained close to the 1000 pfu alert threshold over the past 24 hours. The flux is expected to remain mostly below the alert threshold over the next 24 hours. The 24-hour electron fluence was at normal to moderate 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）：054，基於15個觀測站。

太陽活動指數 14 Apr 2026

卡塔尼亞沃爾夫數	076
10厘米太陽通量	101
AK Chambon La Forêt	006
AK Wingst	003
估計地磁Ap指數	002
估計國際太陽黑子數	060 - 基於27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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