Visualizzazione archivio di lunedì, 22 aprile AM
Daily bulletin on solar and geomagnetic activity from the SIDC
Emesso: 2019 Apr 22 1230 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 | |
|---|---|---|
| 22 Apr 2019 | 069 | 001 |
| 23 Apr 2019 | 069 | 010 |
| 24 Apr 2019 | 069 | 011 |
Bulletin
No flares in the past 24 h. No active regions visible on the solar disk. Solar activity is expected to be low.
No Earth directed CMEs in past 24 h. Solar protons have remained at background levels over the past 24 hours.
The solar wind speed is 370 km/s with interplanetary magnetic fields of 6 nT. Quiet geomagnetic conditions were observed in the past hours. The situation is expected to change in April 23-24 due to the arrival of a fast solar wind stream from a negative polarity coronal hole.
Today's estimated international sunspot number (ISN): 000, based on 31 stations.Solar indices for 21 Apr 2019
| Wolf number Catania | /// |
| 10cm solar flux | 069 |
| AK Chambon La Forêt | 003 |
| AK Wingst | /// |
| Estimated Ap | 004 |
| Estimated international sunspot number | 007 - Based on 30 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
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 | 2026/04/04 | 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 | 128.3 +42.3 |
| Ultimi 30 giorni | 97.5 +35.7 |