查看星期五, 5 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 05 1240 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

Active conditions expected (A>=20 or K=4)

太陽質子

Quiet

	10公分通量	Ap
05 Apr 2024	115	021
06 Apr 2024	116	017
07 Apr 2024	117	010

太陽活動區和耀斑

The solar flaring activity was low over the past 24 hours. The large flare was a C3.8 observed on the east limb, from a region that is about to rotate to the front disc side. Few sunspots groups are visible on the disc. However they remain quiet. The solar flaring activity is expected to be at low levels over the next 24 hours, with possible C-class flares from this new region.

日冕物質拋射

No Earth directed Coronal Mass Ejections (CMEs) have been detected in the available coronagraph imagery.

太陽風

The solar wind conditions are under the influence of the high- speed stream from the negative polarity equatorial coronal hole (that crossed the central meridian on April 01). The interplanetary magnetic field phi turned in the negative sector (directed towards the Sun). The solar wind speed ranging between 405 km/s and 558 km/s. The total interplanetary magnetic field reached values around 10 nT and the Bz component reached values up to -7.7 nT. The solar wind conditions are expected to be enhanced on April 05 and then to return to slow solar wind speed.

地磁

Geomagnetic conditions were unsettled to active (NOAA Kp 2-4 and Local K Bel 2-4) in response of the high-speed stream from the negative polarity equatorial coronal hole (that crossed the central meridian on April 01). Geomagnetic conditions are expected to be at unsettled with possible active conditions on April 05.

質子通量水平

Over the past 24 hours, the greater than 10 MeV GOES proton flux was below the 10 pfu threshold and is expected to remain below this threshold for the next 24 hours.

地球靜止軌道上的電子通量

The greater than 2 MeV electron flux remained below the 1000 pfu threshold as measured by GOES 16. It is expected to remain below this threshold over the next days. The 24-hour electron fluence was at nominal levels. The electron fluence is expected to be at nominal levels over the next day.

今日估計的國際太陽黑子數（ISN）：083，基於10個觀測站。

太陽活動指數 04 Apr 2024

卡塔尼亞沃爾夫數	049
10厘米太陽通量	114
AK Chambon La Forêt	023
AK Wingst	014
估計地磁Ap指數	014
估計國際太陽黑子數	048 - 基於22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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