查看星期一, 7 7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 Jul 07 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

Minor storm expected (A>=30 or K=5)

太陽質子

Quiet

	10公分通量	Ap
07 Jul 2025	117	016
08 Jul 2025	119	016
09 Jul 2025	121	010

太陽活動區和耀斑

Solar flaring activity was low over the past 24 hours, with only C-class flares identified. The largest flare was a C1.5 flare (SIDC Flare 4804) peaking on July 07 at 03:54 UTC, which was not associated with any sunspot group. A total of 8 numbered sunspot groups were identified on the disk over the past 24 hours. All regions on disk have either an Alpha or Beta magnetic configuration. SIDC Sunspot Group 539 (NOAA Active Region 4127) has started to rotate over the west limb. Solar flaring activity is expected to be low over the next 24 hours, with C-class flares very likely and a chance for M-class flares.

日冕物質拋射

No Earth-directed Coronal Mass Ejections (CMEs) have been detected in the available coronagraph images. A north directed CME observed at 04:24 UTC on July 07, associated with a filament eruption seen in SDO/AIA 304 and 171 at 01:36 UTC on July 07, is not expected to impact the Earth.

太陽風

In the past 24 hours solar wind conditions at Earth were disturbed, due to the ongoing influence of a high-speed stream (HSS), associated with SIDC coronal hole 111. The total interplanetary magnetic field ranged from 6 nT to a peak of 14 nT, with the Bz component reaching a minimum of -11 nT. The solar wind speed ranged from 390 km/s to 570 km/s. The phi-angle was mainly in the negative sector (directed towards the Sun) with periods in the positive sector. The solar wind conditions are expected to remain disturbed in the next 24 hours due to the ongoing influence of the HSS.

地磁

The geomagnetic conditions over the past 24 hours reached minor storm conditions globally (Kp 5) and active conditions locally (K BEL 4). Active to minor storm conditions are expected for the next 24 hours.

質子通量水平

Over the past 24 hours, the greater than 10 MeV GOES proton flux was at background 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, as measured by the GOES-19 satellite, remained below the 1000 pfu threshold over the past 24 hours. The greater than 2 MeV electron flux, as measured by the GOES-18 satellite, exceeded the 1000 pfu threshold between 21:00 UTC and 22:15 UTC on July 06. The electron flux is expected to remain below the threshold level over the next 24 hours. The 24-hour 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）：094，基於13個觀測站。

太陽活動指數 06 Jul 2025

卡塔尼亞沃爾夫數	///
10厘米太陽通量	118
AK Chambon La Forêt	029
AK Wingst	020
估計地磁Ap指數	023
估計國際太陽黑子數	087 - 基於13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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