查看星期三, 2 2月 2022歷史檔案

SIDC 太陽影響數據分析中心的每日公告

發布時間: 2022 Feb 02 1247 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
02 Feb 2022	129	013
03 Feb 2022	131	012
04 Feb 2022	130	013

公告

Solar activity was low over the past 24 hours. Active Region 2939 (Catania sunspot group 22, Mag. configuration: beta) has been most active, producing a C9.0 flare, peaking on Feb 01 22:23UT. This was associated with a dimming. Over the next 24 hours, C-class flares can be expected with a possibility of M-class flares and a slight chance of X-class flares.

Of the Coronal Mass Ejections observed, none is currently expected to have an Earth-directed component.

The greater than 10 MeV proton flux was at nominal levels over the past 24 hours and is expected to remain so for the next 24 hours, depending flaring activity. The greater than 2 MeV electron flux exceeded the 1000 pfu alert threshold on Feb 01 13:38UT, until 22:34UT. It is expected to remain about threshold in the next 24 hours. The 24h electron fluence was at moderate levels and is expected to be about moderate levels during the next period. Over the past 24 hours, a shock was detected in solar wind data on Feb 01 21:41UT, due to the arrival of the CME taking place on Jan 29 23:36UT. The solar wind speed jumped from 400 to 470 km/s. The magnetic field magnitude jumped from 5 to 12 nT. Bz attained a southward peak reaching -11nT. Since then, the total magnetic field has decreased to 8 nT while Bz has a value of +3nT. The solar wind speed has remained slightly enhanced. The interplanetary magnetic field phi angle was predominantly in the positive sector sector (directed way from the Sun), with slight variations associated with the impact of the CME. Over the next 24 hours, we expect that impact to dissipate further. An equatorial negative polarity coronal hole is at central meridian and the associated high speed stream can be expected Feb 05.

Geomagnetic conditions were quiet to unsettled over the past 24 hours, with an active period on Feb 02 00:00 to 03:00UT (NOAA Kp and K-BEL=4). Geomagnetic conditions are expected to be quiet to unsettled over the next 24 hours due to the expected CME influence.

今日估計的國際太陽黑子數（ISN）：077，基於12個觀測站。

太陽活動指數 01 Feb 2022

卡塔尼亞沃爾夫數	///
10厘米太陽通量	129
AK Chambon La Forêt	020
AK Wingst	006
估計地磁Ap指數	006
估計國際太陽黑子數	083 - 基於18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

<< 回到每日概觀