查看星期六, 27 9月 2014歷史檔案

SIDC 太陽影響數據分析中心的每日公告

發布時間: 2014 Sep 27 1234 UTC

SIDC太陽影響數據分析中心的預報

太陽閃焰

Active (M-class flares expected, probability >=50%)

地磁

Active conditions expected (A>=20 or K=4)

太陽質子

Quiet

	10公分通量	Ap
27 Sep 2014	173	016
28 Sep 2014	176	013
29 Sep 2014	179	007

公告

Solar activity has been at low to moderate level. The largest flare occurred during a GOES 15 data gap. From PROBA2/LYRA data it is derived to be of M1 magnitude. Its peak was reported to have occurred at 8:37 UT. The second strongest event was a C7.9 flare originating from NOAA AR 2177 peaking at 16:18 UT. Some further C flares were reported including from regions 2172 and 2173. Further growth was recorded in the main regions at play 2175, 2172 and 2173. The occurrence of M class flares has become quite possible or even likely. No Earth directed CME's were recorded. Solar wind speed decreased slightly from around 460 km/s to around 420 km/s. Total magnetic field was variable mainly within the 5 to 7 nT range. Some periods with dominant negative Bz (peaks to under -6nT) were observed at the start of the reporting period as well as after UT midnight. Geomagnetic conditions were quiet to active (both NOAA Kp and local K Dourbes 2-4). Quiet to active geomagnetic conditions are expected in the first two days with later quiet to unsettled conditions.

今日估計的國際太陽黑子數（ISN）：109，基於10個觀測站。

太陽活動指數 26 Sep 2014

卡塔尼亞沃爾夫數	///
10厘米太陽通量	170
AK Chambon La Forêt	028
AK Wingst	017
估計地磁Ap指數	018
估計國際太陽黑子數	122 - 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

所有時間均採用 UTC 時間

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