查看星期三, 28 1月 2015歷史檔案

SIDC 太陽影響數據分析中心的每日公告

發布時間: 2015 Jan 28 1223 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
28 Jan 2015	168	015
29 Jan 2015	175	018
30 Jan 2015	180	018

公告

Four C- and one M-class flare were observed over the period. The strongest event was an M1.4 flare peaking at 04:41 UT in NOAA 2268. Currently available data and imagery suggest no CME was associated to this flare. NOAA 2268 still has mixed magnetic polarities in its trailing portion. Old active region NOAA 2257 is rounding the east limb. This is a complex group, but produced only one minor C-class flare. No earth-directed CMEs have been observed. The x-ray background flux was mostly above the C1-level. A 20 degree long filament near the solar equator is at W55 and thus in a geoeffective position in case of eruption. Further M-class flaring is expected. Solar wind varied mostly between 440 and 500 km/s, with a peak of about 530 km/s around 03:00UT. Bz was mildly positive during the period, with negative excursions between 19:00UT and 22:00UT (-5 nT) and again between 04:00 and 08:00UT (-7 nT). Geomagnetic conditions were mostly unsettled with locally (Dourbes) some active episodes shortly after midnight.The solar wind is expected to remain disturbed, with further influences from the CH HSS and a possible glancing blow on 30 January from the 24 January CME. The geomagnetic field is expected to range from quiet to active conditions.

今日估計的國際太陽黑子數（ISN）：107，基於08個觀測站。

太陽活動指數 27 Jan 2015

卡塔尼亞沃爾夫數	///
10厘米太陽通量	158
AK Chambon La Forêt	023
AK Wingst	014
估計地磁Ap指數	014
估計國際太陽黑子數	097 - 基於19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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