查看星期二, 21 11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 Nov 21 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
21 Nov 2023	156	015
22 Nov 2023	160	015
23 Nov 2023	180	006

太陽活動區和耀斑

Solar flaring activity was low over the past 24 hours. NOAA Active Region (AR) 3492 (Catania sunspot group 58) has been mostly active, producing C-class flares, including the C8.0 flare, which peaked at 20 November 12:31 UTC. NOAA AR 3489 (Catania sunspot group 52) developed further but remained rather inactive. NOAA ARs 3493 and 3494 (Catania sunspot group 59) have emerged on the south east quadrant as well as NOAA ARs 3496 (around N09E30).

日冕物質拋射

No Earth directed Coronal Mass Ejections (CMEs) have been detected in the available coronagraph imagery.

日冕洞

An equatorial positive polarity coronal hole is in a geo- effective position today. The southern negative polarity coronal hole is crossing the central meridian. Finally, a mid latitude coronal hole positive coronal hole will cross central meridian on 22-23 November.

太陽風

The interplanetary magnetic field values increased, nearing to 14 nT. The north-south component reached down to -13 nT, but was mostly variable. About 20 November 17:00 UT it changed orientation from towards the Sun (negative sector) to away from the Sun (positive sector). Solar wind speed varied within the 260-370 km/s range. The high speed solar wind from the southern negative polarity coronal hole is expected to arrive to Earth in 24-48 hours.

地磁

Geomagnetic conditions were quiet to active (both NOAA Kp and local K Belgium 1-4) over the past 24 hours. It is possible geomagnetic conditions reach active levels over the next 24 hours, due to high-speed stream arrivals.

質子通量水平

Over the past 24 hours the greater than 10 MeV GOES proton flux was below threshold and is expected to remain so over 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, as measured by GOES 16. It is expected to remain so in the next 24 hours. The 24 hour electron fluence was at normal levels, it is expected to stay at those levels for the next 24 hours.

今日估計的國際太陽黑子數（ISN）：161，基於09個觀測站。

太陽活動指數 20 Nov 2023

卡塔尼亞沃爾夫數	119
10厘米太陽通量	157
AK Chambon La Forêt	009
AK Wingst	004
估計地磁Ap指數	003
估計國際太陽黑子數	098 - 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

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