Viewing archive of Friday, 13 September 2013
Daily bulletin on solar and geomagnetic activity from the SIDC
Issued: 2013 Sep 13 1245 UTC
SIDC Forecast
Solar flares
Quiet conditions (<50% probability of C-class flares)
Geomagnetism
Quiet (A<20 and K<4)
Solar protons
Quiet
| 10cm flux | Ap | |
|---|---|---|
| 13 Sep 2013 | 093 | 007 |
| 14 Sep 2013 | 092 | 007 |
| 15 Sep 2013 | 091 | 007 |
Bulletin
Solar activity is very low, no C-class flares in past 7 days. There are five numbered active regions on the solar disc today, none is expected to produce important flares. The coronal hole fast solar wind arrived around 18:00 UT on September 12. It produced only unsettled conditions. Quiet to unsettled conditions are expected for the next 48h.
Today's estimated international sunspot number (ISN): 026, based on 13 stations.Solar indices for 12 Sep 2013
| Wolf number Catania | /// |
| 10cm solar flux | 093 |
| AK Chambon La Forêt | 013 |
| AK Wingst | 008 |
| Estimated Ap | 007 |
| Estimated international sunspot number | 036 - Based on 13 stations |
Noticeable events summary
| Day | Begin | Max | End | Loc | Strength | OP | 10cm | Catania/NOAA | Radio burst types | |
|---|---|---|---|---|---|---|---|---|---|---|
| None | ||||||||||
Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive
All times in UTC
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