查看星期四, 30 10月 2025歷史檔案

SIDC 太陽影響數據分析中心的每日公告

發布時間: 2025 Oct 30 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

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

太陽質子

Quiet

	10公分通量	Ap
30 Oct 2025	118	031
31 Oct 2025	118	015
01 Nov 2025	118	011

太陽活動區和耀斑

Solar flaring activity was very low over the past 24 hours. The X-ray flux was below C level. A total of 6 numbered sunspot groups were identified on the disk over the past 24 hours. Solar flaring activity is expected to be low over the next 24 hours, with C-class flares likely.

日冕物質拋射

A partial halo CME (angular width around 140 degrees) was first seen by LASCO C2 at 04:47 UT on 30 October. This CME is backsided and not expected to arrive to the Earth.

日冕洞

There are two coronal holes (SIDC Coronal Hole 123 and 128) on the western hemisphere and one that crossed the central meridian on 29 October (SIDC Coronal Hole 129), all with positive polarity.

太陽風

Over the past 24 hours, we observed a high speed stream from SIDC Coronal Hole 123, combined with SIDC Coronal Hole 128. The speeds reached 550 km/s, currently at 500 km/s. The interplanetary magnetic field rose to 13 nT (currently at 12 nT), with positive polarity (away from the Sun). We expect similar conditions in the next 24 hours.

地磁

Geomagnetic conditions reached minor storm conditions at planetary levels and (Kp up to 5- and K-Bel: up to 4). In the next 24 hours, active conditions can be expected.

質子通量水平

The greater than 10 MeV GOES proton flux was below the 10 pfu 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 measured by GOES 18 and GOES 19 was below the 1000 pfu threshold. The greater than 2 MeV electron flux is expected to remain below the 1000 pfu threshold over the next 24 hours. The 24-hour electron fluence was at normal levels and is expected to be at normal levels over the next 24 hours.

今日估計的國際太陽黑子數（ISN）：064，基於12個觀測站。

太陽活動指數 29 Oct 2025

卡塔尼亞沃爾夫數	117
10厘米太陽通量	118
AK Chambon La Forêt	040
AK Wingst	025
估計地磁Ap指數	026
估計國際太陽黑子數	093 - 基於14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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