Viewing archive of Saturday, 31 August 2013
Daily bulletin on solar and geomagnetic activity from the SIDC
Issued: 2013 Aug 31 1204 UTC
SIDC Forecast
Solar flares
Eruptive (C-class flares expected, probability >=50%)
Geomagnetism
Minor storm expected (A>=30 or K=5)
Solar protons
Quiet
| 10cm flux | Ap | |
|---|---|---|
| 31 Aug 2013 | 108 | 011 |
| 01 Sep 2013 | 109 | 017 |
| 02 Sep 2013 | 110 | 011 |
Bulletin
Solar activity was quiet the last 24 hours, but eruptive conditions are expected especially from AR NOAA 11835 has a possibility in producing an M-class flare. Current Solar Wind speed is around 420 km/s and the interplanetary magnetic filed Bz component is around -5 nT. Geomagnetic conditions where quiet in the past 24 hours, but are expected to reach up to minor storm (K=5) levels in the evening of August 31st.
Today's estimated international sunspot number (ISN): 049, based on 15 stations.Solar indices for 30 Aug 2013
| Wolf number Catania | /// |
| 10cm solar flux | 108 |
| AK Chambon La Forêt | 025 |
| AK Wingst | 012 |
| Estimated Ap | 012 |
| Estimated international sunspot number | 046 - Based on 23 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
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