查看星期一, 29 5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 May 29 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
29 May 2023	151	007
30 May 2023	149	007
31 May 2023	147	007

太陽活動區和耀斑

There are seven visible active regions on the solar disk. Only minor C-class flaring has been observed in the last 24 hours. These flares originated in NOAA ar 3315, 3314 and a region rotating into view from the east limb. This region produced the largest flare of the past 24 hours, a C2.3 flare peaking at 07:39 UT. NOAA AR 3315, with beta- gamma-delta magnetic field configuration, has potential to produce larger flares. There will be C-class flares in the next 24 hours, and M-class flares are possible.

日冕物質拋射

No Earth-directed coronal mass ejections (CMEs)were detected in the available coronagraph imagery.

日冕洞

A positive polarity coronal hole in the southern hemisphere crossed the central meridian today. A related high speed solar wind stream may arrive to the Earth on 1 June.

太陽風

The Earth is inside slow solar wind, with an interplanetary magnetic field around 5 nT and solar wind speed of about 370 km/s. Similar conditions are expected for the next 24 hours, with a (low) probability of seeing a glancing blow from the CMEs of 25-26 May. Furthermore, the solar wind from a small coronal hole with negative polarity in the northern hemisphere may arrive to the Earth in th next 24 hours, but since the coronal hole is located at high latitude, the corresponding high speed stream may miss the Earth.

地磁

The geomagnetic conditions over the past 24 hours were quiet to unsettled (K_Belgium and Kp up to 3). Mostly quiet geomagnetic conditions are expected, with chances of active levels if we see the glancing blow from the 25-26 May CMEs or the high speed stream from the negative polarity coronal hole in the northern hemisphere.

質子通量水平

Over the past 24 hours the greater than 10 MeV GOES proton flux was at nominal levels and is expected to remain so over the next days.

地球靜止軌道上的電子通量

The greater than 2 MeV electron flux was below the 1000 pfu threshold over the past 24 hours and is expected to remain so in the next 24 hours. The 24h electron fluence was at normal levels and is expected to remain at normal levels over the next 24 hours.

今日估計的國際太陽黑子數（ISN）：153，基於22個觀測站。

太陽活動指數 28 May 2023

卡塔尼亞沃爾夫數	///
10厘米太陽通量	151
AK Chambon La Forêt	///
AK Wingst	011
估計地磁Ap指數	014
估計國際太陽黑子數	147 - 基於26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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