查看星期二, 19 12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 Dec 19 1300 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
19 Dec 2023	162	011
20 Dec 2023	162	007
21 Dec 2023	163	007

太陽活動區和耀斑

The solar flaring activity was at low levels with several C-class flares during the last 24 hours. The largest reported flare was GOES C7.4 flare, which peaked at 03:04 UT on Dec 19, from NOAA AR 3528. During the flare, the source region (AR 3528) of the flare had beta-delta configuration of its photospheric magnetic field. Apart from NOAA AR 3528, NOAA AR 3526 also produced several C-class flares. The solar flaring activity is expected to be at low to moderate levels over the next 24 hours with few C-class flares, possibly M-class flares and a low chance for isolated X-class flares.

日冕物質拋射

No Earth-directed coronal mass ejections (CMEs) were detected in the available coronagraph observations during last 24 hour.

日冕洞

A negative polarity coronal hole is continuing to cross the central meridian and a high-speed stream from this coronal hole may arrive to Earth from December 22.

太陽風

Over the past 24 hours, the solar wind parameters were disturbed under the influence of high speed streams (HSSs) from the positive polarity coronal hole which crossed the central meridian on Dec 17. The solar wind speed ranged between 440 km/s to 720 km/s. The North- South component (Bz) ranged between -10 and 9 nT. The interplanetary magnetic field ranging from 2 nT to 12 nT. Possible disturbances in solar wind parameters due to any remnants from HSSs arrives at Earth in the coming 24 hours.

地磁

Geomagnetic conditions were globally and locally at quiet to Minor storm conditions (NOAA Kp and K BEL 1 to 5), due to the arrival of high speed streams from the positive polarity coronal hole which crossed the central meridian on Dec 17. The geomagnetic condition is expected to be quiet to active conditions probably in the next 24 hours.

質子通量水平

The greater than 10 MeV proton flux was below the threshold level over the past 24 hours and is expected to remain so for 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 the GOES-16 satellite, remained below the threshold level in the last 24 hours. The 24h electron fluence continues to be at normal level. It is expected that this parameter will remain below the threshold level in the coming 24 hours.

今日估計的國際太陽黑子數（ISN）：170，基於10個觀測站。

太陽活動指數 18 Dec 2023

卡塔尼亞沃爾夫數	208
10厘米太陽通量	161
AK Chambon La Forêt	040
AK Wingst	021
估計地磁Ap指數	026
估計國際太陽黑子數	141 - 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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