查看星期二, 30 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 30 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
30 May 2023	154	007
31 May 2023	152	007
01 Jun 2023	150	011

太陽活動區和耀斑

There are ten visible active regions on the solar disk. NOAA AR 3315 remains the most complex region, but it has lost its delta spot and it has now a beta-gamma magnetic field configuration. NOAA AR 3310 has been producing the largest flares, including two M-class flares. This region is currently rotating out of view over the west limb. The largest flare of the past 24 hours was an M1.3 one, peaking at 10:22 UTC, from NOAA AR 3310. There will be C-class flares in the next 24 hours, and more M-class flares can be expected.

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 yesterday. A related high speed solar wind stream may arrive to the Earth on 1-2 June.

太陽風

The Earth is inside slow solar wind, with an interplanetary magnetic field around 7 nT and solar wind speed of about 380 km/s. Similar conditions are expected for the next 24 hours, with low chances of observing a glancing blow from the 26 May CME.

地磁

The geomagnetic conditions over the past 24 hours were quiet (K_Belgium and Kp below 3). Mostly quiet geomagnetic conditions are expected, with chances of active levels if we see the glancing blow from the 26 May CME.

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 in 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 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）：157，基於20個觀測站。

太陽活動指數 29 May 2023

卡塔尼亞沃爾夫數	169
10厘米太陽通量	154
AK Chambon La Forêt	///
AK Wingst	005
估計地磁Ap指數	004
估計國際太陽黑子數	157 - 基於28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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