Просмотр архива за воскресенье, 8 сентября 2019
Daily bulletin on solar and geomagnetic activity from the SIDC
Существующий: 2019 Sep 08 1230 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 | |
|---|---|---|
| 08 Sep 2019 | 074 | 012 |
| 09 Sep 2019 | 073 | 007 |
| 10 Sep 2019 | 072 | 007 |
Bulletin
No active regions visible on the disk. Solar activity has been very low, no flares in the past 24 h. The situation is not expected to change in the next 48 h.
No Earth directed CMEs in past 24 h. Solar protons have remained at background levels over the past 24 hours.
The solar wind speed is at 420 km/s with interplanetary magnetic field magnitude of 4 nT. Geomagnetic conditions have been quiet to unsettled. The fast solar wind stream associated with a negative polarity coronal hole has not arrived yet, it could do so today, although it may have missed the Earth. Unsettled conditions can be expected (up to active if the fast solar wind arrives).
Today's estimated international sunspot number (ISN): 000, based on 18 stations.Solar indices for 07 Sep 2019
| Wolf number Catania | /// |
| 10cm solar flux | 074 |
| AK Chambon La Forêt | 014 |
| AK Wingst | 008 |
| Estimated Ap | 007 |
| Estimated international sunspot number | 000 - Based on 27 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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