Solar activity reached again moderate levels thanks to a very impulsive M4.3 (NOAA R1-minor radio blackout) solar flare at 13:03 UTC. We also have some disturbing news from NASA regarding the STEREO Behind spacecraft.
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Last X-flare | 2024/09/14 | X4.54 |
Last M-flare | 2024/09/14 | M3.0 |
Last geomagnetic storm | 2024/09/17 | Kp8- (G4) |
Spotless days | |
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Last spotless day | 2022/06/08 |
Monthly mean Sunspot Number | |
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August 2024 | 215.5 +19 |
September 2024 | 149.4 -66.1 |
Last 30 days | 156.7 -55.8 |