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Daily bulletin on solar and geomagnetic activity from the SIDC
Emesso: 2013 Jan 19 1152 UTC
SIDC Forecast
Brillamenti solari
Quiet conditions (<50% probability of C-class flares)
Geomagnetism
Minor geomagnetic storm expected (A>=30 or K=5)
Protoni solari
Quiet
| 10cm flux | Ap | |
|---|---|---|
| 19 Jan 2013 | 109 | 011 |
| 20 Jan 2013 | 100 | 016 |
| 21 Jan 2013 | 098 | 004 |
Bulletin
Solar conditions where quiet featuring some small C flares and one C5.8 flare originating from AR NOAA 1654. Quiet conditions are expected to continue for the next 24 hours. Geomagnetic conditions where moderate with K values between 2 and 4, but are expected to increase with the expected arrival of the CME of wednesday January 16th 19:12 UT as seen in LASCO C2. Geomagnetic conditions are expected to return to quiet conditions on Sunday January 20th.
Today's estimated international sunspot number (ISN): 032, based on 04 stations.Solar indices for 18 Jan 2013
| Wolf number Catania | 039 |
| 10cm solar flux | 115 |
| AK Chambon La Forêt | 018 |
| AK Wingst | 014 |
| Estimated Ap | 013 |
| 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 | 2026/03/28 | M1.3 |
| Ultima tempesta geomagnetica | 2026/03/25 | Kp5+ (G1) |
| Giorni senza macchie | |
|---|---|
| Ultimi 365 giorni | 3 giorni |
| 2026 | 3 giorni (3%) |
| Ultimo giorno senza macchie | 2026/02/24 |
| Media mensile Numero di Macchie Solari | |
|---|---|
| febbraio 2026 | 78.2 -34.3 |
| marzo 2026 | 84 +5.8 |
| Ultimi 30 giorni | 84 +6.2 |