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Daily bulletin on solar and geomagnetic activity from the SIDC
Emesso: 2013 Mar 28 1224 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 Mar 2013 | 092 | 017 |
| 29 Mar 2013 | 092 | 007 |
| 30 Mar 2013 | 092 | 007 |
Bulletin
Very quiet solar conditions are expected for the next 48 hours. Geomagnetic activity is expected to be unsettled for the next 24 hours, with possibly isolated periods of active conditions. We had, in the past 24 hours, active conditions at planetary levels, due to the effect of a coronal hole. Current conditions are quiet.
Today's estimated international sunspot number (ISN): 029, based on 12 stations.
Solar indices for 27 Mar 2013
| Wolf number Catania | 051 |
| 10cm solar flux | 093 |
| AK Chambon La Forêt | 040 |
| AK Wingst | 027 |
| Estimated Ap | 025 |
| Estimated international sunspot number | 026 - Based on 10 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
| Ultimo brillamento X | 2026/02/04 | X4.21 |
| Ultimo brillamento M | 2026/02/25 | M2.4 |
| Ultima tempesta geomagnetica | 2026/02/22 | Kp5+ (G1) |
| Giorni senza macchie | |
|---|---|
| Ultimi 365 giorni | 3 giorni |
| 2026 | 3 giorni (5%) |
| Ultimo giorno senza macchie | 2026/02/24 |
| Media mensile Numero di Macchie Solari | |
|---|---|
| gennaio 2026 | 112.6 -11.4 |
| Ultimi 30 giorni | 70.4 -48.3 |