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Daily bulletin on solar and geomagnetic activity from the SIDC
Существующий: 2013 Aug 19 1243 UTC
SIDC Forecast
Солнечные вспышки
Quiet conditions (<50% probability of C-class flares)
Geomagnetism
Quiet (A<20 and K<4)
Солнечные протоны
Quiet
| 10cm flux | Ap | |
|---|---|---|
| 19 Aug 2013 | 130 | 006 |
| 20 Aug 2013 | 130 | 023 |
| 21 Aug 2013 | 130 | 012 |
Bulletin
The strongest solar event of the past 24 hours was a C1.9 flare originating from NOAA AR 1817 at 9h22 UT. We expect solar activity to stay at eruptive levels with chances for C class flares mainly from NOAA ARs 1817, 1818 and 1824 and a small risk for an isolated M class flare. An increase in the solar wind speed is expected due to the effects of the recurrent equatorial CH high-speed stream. Enhanced geomagnetic activity is possible (unsettled to active) for the next two days, in relation to the CH and the possible arrival of the CME of August 17.
Today's estimated international sunspot number (ISN): 091, based on 16 stations.Solar indices for 18 Aug 2013
| Wolf number Catania | /// |
| 10cm solar flux | 126 |
| AK Chambon La Forêt | 010 |
| AK Wingst | 008 |
| Estimated Ap | 006 |
| Estimated international sunspot number | 077 - Based on 19 stations |
Noticeable events summary
| Day | Begin | Max | Конец | Loc | Strength | OP | 10cm | Catania/NOAA | Radio burst types | |
|---|---|---|---|---|---|---|---|---|---|---|
| Нет | ||||||||||
Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive
Все время в UTC
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