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Daily bulletin on solar and geomagnetic activity from the SIDC
Emesso: 2015 Feb 27 1239 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 | |
|---|---|---|
| 27 Feb 2015 | 110 | 007 |
| 28 Feb 2015 | 109 | 007 |
| 01 Mar 2015 | 105 | 007 |
Bulletin
Solar activity is very low and is expected to remain so, no C-class flares in past 24 h. Geomagnetic conditions are quiet and expected to remain so.
Today's estimated international sunspot number (ISN): 042, based on 08 stations.Solar indices for 26 Feb 2015
| Wolf number Catania | /// |
| 10cm solar flux | 111 |
| AK Chambon La Forêt | 007 |
| AK Wingst | 004 |
| Estimated Ap | 003 |
| Estimated international sunspot number | 022 - Based on 07 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 | 2025/12/08 | X1.1 |
| Ultimo brillamento M | 2025/12/12 | M1.1 |
| Ultima tempesta geomagnetica | 2025/12/12 | Kp5 (G1) |
| Giorni senza macchie | |
|---|---|
| Ultimo giorno senza macchie | 2022/06/08 |
| Media mensile Numero di Macchie Solari | |
|---|---|
| novembre 2025 | 91.8 -22.8 |
| dicembre 2025 | 135.1 +43.3 |
| Ultimi 30 giorni | 109.3 +15.5 |