發布時間: 2014 Dec 26 1209 UTC
Eruptive (C-class flares expected, probability >=50%)
Active conditions expected (A>=20 or K=4)
Quiet
| 10公分通量 | Ap | |
|---|---|---|
| 26 Dec 2014 | 138 | 016 |
| 27 Dec 2014 | 130 | 011 |
| 28 Dec 2014 | 130 | 009 |
Only a handful (mainly) lower C-class flares erupted during the past 24 hours, while the background of the Xray flux is at the higher B-level. The main event was a C4.3 flare, originating from Catania sunspot region 46 (NOAA active region 2448). NOAA 2249 (no Catania number yet) is the other region that is producing some flares. No Earth-directed CMEs were observed. Flaring at the C-level is expected to continue. Earth is inside a stable solar wind, with a speed near 450 km/s. The magnitude of the interplanetary magnetic field obtains values between 7 and 10 nT, with a mainly negative Bz component till -9 nT. Geomagnetic activity reached active levels (K=4) at local (at Dourbes) and global levels (NOAA estimated Kp). Quiet to unsettled geomagnetic conditions are expected, with some chance for active conditions, due to effects of a coronal hole high speed stream.
今日估計的國際太陽黑子數(ISN):064,基於08個觀測站。
| 卡塔尼亞沃爾夫數 | /// |
| 10厘米太陽通量 | 145 |
| AK Chambon La Forêt | 026 |
| AK Wingst | 013 |
| 估計地磁Ap指數 | 013 |
| 估計國際太陽黑子數 | 069 - 基於24個觀測站 |
| 日 | 開始 | 最大值 | 結束 | 位置 | 強度 | OP | 10cm | 卡塔尼亞天體物理觀測站/美國國家海洋暨大氣管理局 | 電波爆發類型 | |
|---|---|---|---|---|---|---|---|---|---|---|
| 無 | ||||||||||
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