查看星期日, 22 10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 Oct 22 1235 UTC

SIDC太陽影響數據分析中心的預報

太陽閃焰

Quiet conditions (<50% probability of C-class flares)

地磁

Quiet (A<20 and K<4)

太陽質子

Quiet

	10公分通量	Ap
22 Oct 2023	121	012
23 Oct 2023	119	015
24 Oct 2023	119	021

太陽活動區和耀斑

The solar flaring activity was at very low levels. No significant flaring activity has been recorded. NOAA AR 3467 and 3465 decayed into plage regions. The three remaining regions on disk, NOAA ARs 3469, 3468 and 3470 were stable and quiet. The solar flaring activity is expected to be at very low levels over the next 24 hours with a low probability of C-class flares.

日冕物質拋射

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

日冕洞

A small equatorial positive polarity coronal hole began to transit the central meridian on October 22.

太陽風

The solar wind parameters were indicative of ongoing weak transient magnetic structures, possibly associated to one of the predicted glancing blow CME arrivals. The interplanetary magnetic field ranged between 2 and 9nT. Bz was predominantly negative with a minimum Bz of -7nT. The solar wind speed was at background levels between 270 and 320 km/s. The interplanetary magnetic field orientation continually switched between the positive sector (field directed away from Sun) and the negative sector (field directed towards the Sun). The interplanetary magnetic field is expected to remain slightly enhanced on 22, due to ongoing possible CME influences. The expected interaction region and weak high-speed stream from the small negative polarity coronal hole, which crossed the central meridian on 19, could increase the solar wind speed slightly over the next days.

地磁

During last 24 hours the geomagnetic conditions were at unsettled levels at the start of the period and then decreased to quiet levels from 21:00 UTC October 22 (NOAA KP 1-3+ and K Bel 1-3). Geomagnetic conditions are expected to be at quiet to unsettled on October 22, with active intervals possible from October 23, due the influence of the high speed stream.

質子通量水平

Over the past 24 hours the greater than 10 MeV GOES proton flux was at nominal 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 remained below the 1000 pfu threshold as measured by GOES 16. It is expected to remain below this threshold over the next days. The 24 hour electron fluence was at nominal levels. The electron fluence is expected to be at nominal levels for the next days.

今日估計的國際太陽黑子數（ISN）：054，基於14個觀測站。

太陽活動指數 21 Oct 2023

卡塔尼亞沃爾夫數	///
10厘米太陽通量	123
AK Chambon La Forêt	018
AK Wingst	023
估計地磁Ap指數	024
估計國際太陽黑子數	072 - 基於11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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