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Bulletin on solar and geomagnetic activity Solar activity report
Geophysical report
Sunspot regions
Coronal holes
Kp values
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Radiation storms
Solar wind (Speed, Density), Interplanetary Magnetic Field (IMF) (Bt, Bz)
Earth-directed Coronal Mass Ejection from the M4.5 solar flare
Coronagraph imagery from SOHO/LASCO is now complete and shows that the Coronal Mass Ejection (CME) that was launched during the M4.5 solar flare from this past night has an earth-directed component.
M4.5 solar flare from sunspot region 2158
It took a little while but the sunspot group that we told you to watch out for yesterday has woken up! Sunspot region 2158 was the source of a long duration M4.5 (R1-moderate) solar flare that peaked today at 00:29 UTC.
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Friday, 28 March 2025
X1.1 solar flare
Monday, 24 March 2025
Coronal hole faces Earth
Saturday, 22 March 2025
Strong G3 geomagnetic storm watch for 23 March
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Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/03/31 | M1.2 |
| Last geomagnetic storm | 2025/03/27 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2025 | 154.6 +17.6 |
| March 2025 | 127 -27.6 |
| Last 30 days | 127 -25.7 |