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Daily bulletin on solar and geomagnetic activity from the SIDC
Emesso: 2013 Aug 01 1253 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 | |
|---|---|---|
| 01 Aug 2013 | 110 | 004 |
| 02 Aug 2013 | 109 | 012 |
| 03 Aug 2013 | 109 | 007 |
Bulletin
X-ray curve measured by GOES doesn't show any peaks. No C-flares occurred since the yesterday morning, July 31. We expect quiet conditions. The geomagnetic conditions are quiet. From tomorrow unsettled conditions are possible, caused by a fast solar wind emanating from a northern coronal hole.
Today's estimated international sunspot number (ISN): 062, based on 17 stations.Solar indices for 31 Jul 2013
| Wolf number Catania | 107 |
| 10cm solar flux | 109 |
| AK Chambon La Forêt | 009 |
| AK Wingst | 007 |
| Estimated Ap | 005 |
| Estimated international sunspot number | 067 - Based on 26 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
| Ultimo brillamento X | 2026/02/04 | X4.21 |
| Ultimo brillamento M | 2026/03/13 | M1.19 |
| Ultima tempesta geomagnetica | 2026/03/13 | Kp6- (G2) |
| Giorni senza macchie | |
|---|---|
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