查看星期三, 16 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 16 1232 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

Quiet (A<20 and K<4)

太陽質子

Quiet

	10公分通量	Ap
16 Jul 2025	139	008
17 Jul 2025	135	013
18 Jul 2025	132	010

太陽活動區和耀斑

Solar flaring activity was low over the past 24 hours, with only five C-class flares identified. SIDC Sunspot Group 559 (NOAA Active Region [AR] 4143, Beta magnetic configuration) produced three of the flares, including the brightest, SIDC flare 4898, a C5 on 16 Jul at 03:58 UTC. SIDC Sunspot Group 558 (NOAA AR 4142, Beta-Gamma magnetic configuration) produced the rest of the flaring activity. C-class flares are expected for the next 24 hours.

日冕物質拋射

No Earth-directed Coronal Mass Ejections (CME) were observed in the last 24 hours.

太陽風

During the past 24 hours the Solar Wind (SW) conditions continued to be affected by the the High Speed Stream (HSS) that arrived on 11 July and is associated with SIDC Coronal Hole 104 (positive polarity). However, the effect is significantly subsided with the SW speed gradually decreasing from 730 km/s to 500 km/s . The interplanetary magnetic field (B) varied between 3 and 8 nT and its North-South component (Bz) fluctuated between -6 and 7 nT. The fast SW conditions are expected remain at the current levels in the next 24 hours.

地磁

The geomagnetic conditions were globally at quiet to unsettled levels (NOAA Kp 2- to 3) for most of the past 24 hours with the exception of active conditions on 16 Jul between 09:00 and 12:00 UTC. Locally the conditions were quiet to unsettled (K BEL 1 to 3) throughout the last 24 hours. For the next 24 hours the conditions are expected to remain at unsettled to quiet levels and possibly register active conditions for short intervals.

質子通量水平

The greater than 10 MeV proton flux, as measured by the GOES-19 satellite, was at background levels over the past 24 hours 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, as measured by GOES 19, was mostly above the 1000 pfu alert threshold during the past 24 hours. It is expected to remain above the alert level in the next 24 hours. The 24-hour electron fluence reached moderate levels since 15 Jul at 15:00 UTC. It is expected to remain at the current levels in the next 24 hours.

今日估計的國際太陽黑子數（ISN）：204，基於20個觀測站。

太陽活動指數 15 Jul 2025

卡塔尼亞沃爾夫數	205
10厘米太陽通量	139
AK Chambon La Forêt	024
AK Wingst	023
估計地磁Ap指數	024
估計國際太陽黑子數	174 - 基於25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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