查看星期四, 11 4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 Apr 11 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
11 Apr 2024	133	003
12 Apr 2024	135	018
13 Apr 2024	137	014

太陽活動區和耀斑

Solar flaring activity over the last 24 hours has been low, with multiple C-class flares. The strongest activity was a C3.5 flare associated with NOAA AR 3635 (beta), peaking at 11:10 UTC. There are currently four active regions on the solar disk with NOAA AR 3633 (beta-gamma) being the most complex one. NOAA AR 3632 has decayed into plage. The solar flaring activity is expected to be at low levels over the next 24 hours, with C-class flares probable.

日冕物質拋射

No Earth-directed coronal mass ejections (CMEs) were detected in the available coronagraph observations in the last 24 hours. A filament eruption was observed on SDO/AIA 304 data at 06:30 UTC near the central meridian. It will be analysed when coronograph observations become available.

日冕洞

The small, patchy, mid-latitude (south hemisphere), negative polarity coronal hole that was reported on April 9th and 10th has crossed the central meridian. A related high-speed stream is expected to arrive on April 12th. The small, positive polarity, mid-latitude (northern hemisphere) coronal hole that was reported on April 10th continues to reside on the central meridian. A related high-speed stream is expected to arrive on April 13th.

太陽風

The Earth is inside the slow solar wind, with speed values ranging from 406 km/s to 492 km/s and an interplanetary magnetic field around 7nT. The Bz component varied between -6 nT and 7 nT. The interplanetary magnetic field phi angle was predominantly in the positive sector. Possible enhancements in the solar wind speed, due to a high-speed stream associated with the negative polarity coronal hole, may be expected over the next 24 hours.

地磁

Geomagnetic conditions were globally and locally at quiet or unsettled levels (NOAA Kp and K BEL 0 to 3). Active conditions are expected over the next 24 hours due to the influence from the negative polarity coronal hole.

質子通量水平

The greater than 10 MeV 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 was below the threshold level in the last 24 hours and is expected to remain so in the coming 24 hours. The 24h electron fluence is presently at normal levels and is expected to remain so in the coming 24 hours.

今日估計的國際太陽黑子數（ISN）：090，基於12個觀測站。

太陽活動指數 10 Apr 2024

卡塔尼亞沃爾夫數	069
10厘米太陽通量	131
AK Chambon La Forêt	012
AK Wingst	009
估計地磁Ap指數	008
估計國際太陽黑子數	056 - 基於17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

<< 回到每日概觀