查看星期四, 29 6月 2023歷史檔案

SIDC 太陽影響數據分析中心的每日公告

發布時間: 2023 Jun 29 1246 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
29 Jun 2023	155	012
30 Jun 2023	155	013
01 Jul 2023	155	007

太陽活動區和耀斑

Solar flaring activity was at low levels over the last 24 hours with several low C-class flares. The larger flare was a C5.5-class flares produced at 18:39 UTC on Jun 28 by the NOAA Active Region AR-3354, which has developed and became the most complex region on the disc (Beta-gamma-delta). The other complex active region, NOAA Active Region AR-3354, has only produced several flares below C1.2-class. We expect the activity remaining mostly at low levels with several C-class flares, and possible isolated M-class flare in the next 24 hours.

日冕物質拋射

No Earth-directed Coronal Mass Ejections (CME) were observed in the SOHO/LASCO coronograph images over the past 24 hours.

太陽風

The solar wind parameters reflected mostly slow solar wind regime. The wind speed was between 450 km/s to 520 km/h. The total interplanetary magnetic field (Bt) slightly increased to the current values of 77 nT. The southward component (Bz) was fluctuating between -6.4 nT and 5.5 nT. The interplanetary magnetic field phi angle was predominately negative, directed toward the Sun during the past 24 hours. Mild enhancement of the solar wind conditions are expected due to the arrival of the high-speed streams from the coronal hole (negative polarity) that crossed the solar meridian on Jun 24.

地磁

Geomagnetic conditions were quiet to unsettled (NOAA Kp<4 and K_BEL<4). Geomagnetic activity is expected to remaid quiet to unsettled. Possible unsettled to active condition may be expected with the solar wind enhancement due to the arrival of the high-speed streams associated with the coronal hole (negative polarity) that crossed the solar meridian on Jun 24.

質子通量水平

The greater than 10 MeV proton flux was at background levels 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

Electron fluxes at GEO: The greater than 2 MeV electron flux was above the 1000 pfu threshold for a short period. It is expected to remain close to the threshold for the next 24 hours. The 24-hour electron fluence was at normal to moderate levels for the past 24 hours and it is expected to remain at these levels for the next 24 hours.

今日估計的國際太陽黑子數（ISN）：101，基於12個觀測站。

太陽活動指數 28 Jun 2023

卡塔尼亞沃爾夫數	128
10厘米太陽通量	155
AK Chambon La Forêt	016
AK Wingst	012
估計地磁Ap指數	010
估計國際太陽黑子數	130 - 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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