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Daily bulletin on solar and geomagnetic activity from the SIDC
Emesso: 2013 Sep 07 1300 UTC
SIDC Forecast
Brillamenti solari
Quiet conditions (<50% probability of C-class flares)
Geomagnetism
Quiet (A<20 and K<4)
Protoni solari
Quiet
| 10cm flux | Ap | |
|---|---|---|
| 07 Sep 2013 | 100 | 007 |
| 08 Sep 2013 | 102 | 007 |
| 09 Sep 2013 | 104 | 007 |
Bulletin
Solar activity has been eruptive during the past 24 hours, featuring a C1.0 flare from returning NOAA AR 11831 near the East limb, peaking at 22:50 UT on September 6. There is a chance for more C flares within the next 48 hours. The solar wind decreased from 420 to 360 km/s in the past 24 hours. In the same period, the Interplanetary Magnetic Field was low with values between 4 and 5 nT. The geomagnetic activity was at quiet levels (K Dourbes between 0 and 3; NOAA Kp between 1 and 2) during the past 24 hours. Quiet geomagnetic conditions (K Dourbes < 4) are expected for September 7 to 9.
Today's estimated international sunspot number (ISN): 028, based on 06 stations.Solar indices for 06 Sep 2013
| Wolf number Catania | 065 |
| 10cm solar flux | 101 |
| AK Chambon La Forêt | 012 |
| AK Wingst | 006 |
| Estimated Ap | 006 |
| Estimated international sunspot number | 034 - Based on 23 stations |
Noticeable events summary
| Day | Begin | Max | Fine | Loc | Strength | OP | 10cm | Catania/NOAA | Radio burst types | |
|---|---|---|---|---|---|---|---|---|---|---|
| Nessuna | ||||||||||
Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive
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Notizie sul meteo spaziale
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