The aurora and solar activity archive
Searching for historical solar and auroral activity data? The archive is filled with data between the year 1996 and yesterday. You can choose a viewing mode to quickly look for days with interesting space weather and pick a day to view the archived data for that day with more detailed space weather data.
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1C6.53 Kp3- S1 | 2M3.49 Kp3- S1 | 3C9.02 Kp1 S1 | 4M1.57 Kp1 S1 | 5M2.82 Kp1+ S1 | 6C8.99 Kp1+ | |
7C5.45 Kp3- | 8M1.37 Kp4- | 9X1.36 Kp2- | 10M1.01 Kp5 S1 | 11M1.44 Kp5 S1 | 12M4.98 Kp4- S1 | 13M3.2 Kp3+ S1 |
14M6.38 Kp3- | 15C6.82 Kp2+ S1 | 16M2.19 Kp2 S1 | 17C6.06 Kp3- | 18C3.75 Kp3 | 19M1.73 Kp4 | 20C5.56 Kp4- |
21C5.06 Kp4- | 22M1.86 Kp2 | 23C5.41 Kp3 | 24M1.02 Kp3 | 25M1.07 Kp4- | 26M1.92 Kp3 | 27C6.21 Kp3 |
28M1.38 Kp3- | 29M1.05 Kp2 | 30M1.06 Kp1 | 31M5.2 Kp4- | |||
Latest news
Tuesday, 15 April 2025
CME arrival, G3 storm watch
Friday, 28 March 2025
X1.1 solar flare
Monday, 24 March 2025
Coronal hole faces Earth
Latest forum messages
100 year cycle-Centennial Gleissberg Cycle (CGC) 3Incoming & Unnumbered Active Regions 1804Ask your obscure/"stupid" space weather questions. 373Growth of Cycle 25 832AR4070 11
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Latest alerts
Tuesday, 22 April 2025
11:09 UTC - Solar flare
Moderate M1.35 flare
10:39 UTC - Radio Blackout
Minor R1 radio blackout in progress (≥M1 - current: M1.03)
Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/22 | M1.3 |
| Last geomagnetic storm | 2025/04/21 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2025 | 134.2 -20.4 |
| April 2025 | 121 -13.2 |
| Last 30 days | 114 -22.8 |