Visualizzazione archivio di martedì, 23 aprile AM
Daily bulletin on solar and geomagnetic activity from the SIDC
Emesso: 2013 Apr 23 1040 UTC
SIDC Forecast
Brillamenti solari
Quiet conditions (<50% probability of C-class flares)
Geomagnetism
Active conditions expected (A>=20 or K=4)
Protoni solari
Warning condition
| 10cm flux | Ap | |
|---|---|---|
| 23 Apr 2013 | 115 | 012 |
| 24 Apr 2013 | 117 | 020 |
| 25 Apr 2013 | 117 | 004 |
Bulletin
Enhanced geomagnetic conditions are expected as a result from a high speed solar wind outflow from a recurrent coronal hole in the Southern solar hemisphere. Meanwhile, the flaring potential of NOAA active region 1726 is decreasing, yet major C-flares are still possible. The proton flux levels are further decreasing and returning to background levels.
Today's estimated international sunspot number (ISN): 047, based on 07 stations.
Solar indices for 22 Apr 2013
| Wolf number Catania | /// |
| 10cm solar flux | 113 |
| AK Chambon La Forêt | 006 |
| AK Wingst | 006 |
| Estimated Ap | 004 |
| Estimated international sunspot number | 063 - Based on 19 stations |
Noticeable events summary
| Day | Begin | Max | Fine | Loc | Strength | OP | 10cm | Radio burst types | Catania/NOAA |
|---|---|---|---|---|---|---|---|---|---|
| 22 | 1022 | 1029 | 1031 | ---- | M1.0 | III/3,V/3 | 1726 |
Provided by the Solar Influences Data analysis Center© - SIDC - Processed by SpaceWeatherLive
Tutti gli orari in UTC
<< Vai alla pagina della panoramica giornaliera
Ultime notizie
X1.5 solar flare
M2.7 solar flare, CME arrival possible
Complex sunspot region 4366
Ultimi messaggi dal forum
Supporta SpaceWeatherLive.com!
A lot of people come to SpaceWeatherLive to follow the Solar activity or if there is a chance to see the aurora, but with more traffic comes higher costs to keep the servers online. If you like SpaceWeatherLive and want to support the project you can choose a subscription for an ad-free site or consider a donation. With your help we can keep SpaceWeatherLive online!
Notizie sul meteo spaziale
| Ultimo brillamento X | 2026/03/30 | X1.5 |
| Ultimo brillamento M | 2026/04/09 | M1.0 |
| Ultima tempesta geomagnetica | 2026/04/03 | Kp7- (G3) |
| 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 | |
|---|---|
| marzo 2026 | 85.9 +7.7 |
| aprile 2026 | 94.2 +8.3 |
| Ultimi 30 giorni | 94.7 +35.4 |