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Daily bulletin on solar and geomagnetic activity from the SIDC
Emesso: 2013 Jan 28 1228 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 | |
|---|---|---|
| 28 Jan 2013 | 099 | 002 |
| 29 Jan 2013 | 100 | 003 |
| 30 Jan 2013 | 100 | 003 |
Bulletin
Flaring activity is quiet. Some C-level activity is detected on the east limb. The magnetic field imbedded in the solar wind near the Earth is below 4 nT. The solar wind speed is around 400 km/s. The geomagnetic conditions are quiet. We expect them to stay quiet.
Today's estimated international sunspot number (ISN): 036, based on 09 stations.
Solar indices for 27 Jan 2013
| Wolf number Catania | /// |
| 10cm solar flux | 098 |
| AK Chambon La Forêt | 008 |
| AK Wingst | 010 |
| Estimated Ap | 008 |
| Estimated international sunspot number | 050 - Based on 07 stations |
Noticeable events summary
| Day | Begin | Max | Fine | Loc | Strength | OP | 10cm | Radio burst types | Catania/NOAA | |
|---|---|---|---|---|---|---|---|---|---|---|
| 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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| Ultimo brillamento M | 2025/12/28 | M1.3 |
| Ultima tempesta geomagnetica | 2025/12/22 | Kp5 (G1) |
| Giorni senza macchie | |
|---|---|
| Ultimo giorno senza macchie | 2022/06/08 |
| Media mensile Numero di Macchie Solari | |
|---|---|
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