查看星期五, 26 7月 2024歷史檔案

SIDC 太陽影響數據分析中心的每日公告

發布時間: 2024 Jul 26 1253 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
26 Jul 2024	165	017
27 Jul 2024	163	053
28 Jul 2024	161	048

太陽活動區和耀斑

The solar flaring activity was at moderate level during the last 24 hours, with few C-class flares and two M-class flares. The strongest flare was GOES M1.7 flare from NOAA active region (AR) 3761 which peaked at 04:42 UTC on Jul 26. During the flare, the source region (AR 3761) of the flare had beta-gamma configuration of its photospheric magnetic field. Currently, NOAA AR 3762 is the most complex region on the disk (beta-gamma-delta magnetic field configuration), but it has only produced C-class flarings. The solar flaring activity is expected to be at moderate to high levels over the next 24 hours, possibly with few M-class flares and a low chance for isolated X-class flares.

日冕物質拋射

No Earth-directed CMEs were detected in the available coronagraph observations during the last 24 hour.

太陽風

Earth was under the influence of sector boundary crossing followed by the fast wind reaching a maximum speed value of 610 km/s. Presently, the solar wind speed amounts about 520 km/s. The solar wind speed ranged between 370 km/s and 600 km/s. The North-South component (Bz) ranged between -13 and 16 nT. The interplanetary magnetic field ranged between 2 nT and 20 nT. Enhanced solar wind parameters are expected in the next 24 hours, due to the possible arrival of an interplanetary coronal mass ejection associated with a halo CME that was observed lifting from the Sun on Jul 25.

地磁

Enhanced solar wind speed of upto 560 km/s and negative value of the interplanetary magnetic field component Bz, down to -10 nT, induced a disturbed geomagnetic conditions due to the sector boundary crossing. Geomagnetic conditions were globally at quiet to minor storm conditions (NOAA Kp 1 to 5) and locally at quiet to active conditions (K BEL 2 to 4). We expect active to moderate storm conditions (K 4 to 6) in the next 24 hours due to the possible arrival of an ICME, associated with a halo CME that was observed lifting from the Sun on Jul 25.

質子通量水平

The greater than 10 MeV GOES proton flux was below the threshold level over the past 24 hours. It is expected to remain so during the next 24 hours. A major flare from NOAA active regions which are presently close to and at the W limb, in the coming hours, could be possibly associated with a proton event.

地球靜止軌道上的電子通量

The greater than 2 MeV electron flux, as measured by the GOES-16 satellite, was below the threshold level over the past 24 hours and is expected to remain so in the coming 24 hours. The 24h electron fluence is presently at low level, and it is expected to be at low to normal level in the next 24 hours.

今日估計的國際太陽黑子數（ISN）：198，基於21個觀測站。

太陽活動指數 25 Jul 2024

卡塔尼亞沃爾夫數	200
10厘米太陽通量	167
AK Chambon La Forêt	027
AK Wingst	013
估計地磁Ap指數	011
估計國際太陽黑子數	189 - 基於19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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