發布時間: 2013 Jul 21 1350 UTC
Eruptive (C-class flares expected, probability >=50%)
Quiet (A<20 and K<4)
Quiet
| 10公分通量 | Ap | |
|---|---|---|
| 21 Jul 2013 | 115 | 010 |
| 22 Jul 2013 | 116 | 010 |
| 23 Jul 2013 | 115 | 007 |
Solar activity is still low with only three C-class flares reported during last 24 hours. Majority of the flares originated from the NOAA AR 1800 which has at the moment beta configuration of the photosperic magnetic field. The strongest flare was C3.1 flare which peaked at 08:44 UT on July 21. The flare was associated with the coronal dimming and therefore probably also with the CME. However, this cannot be confirmed due to the data gap in STEREO and SOHO/LASCO observations. We expect C-class flares and also possibly M-class flares. The solar wind speed is currently 400 km/s, and the interplanetary magnetic field magnitude is about 3 nT. We expect quiet to unsettled geomagnetic conditions.
今日估計的國際太陽黑子數(ISN):034,基於13個觀測站。
| 卡塔尼亞沃爾夫數 | /// |
| 10厘米太陽通量 | 113 |
| AK Chambon La Forêt | 008 |
| AK Wingst | 005 |
| 估計地磁Ap指數 | 005 |
| 估計國際太陽黑子數 | 038 - 基於16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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