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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February 2011 |
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Tuesday Tues. |
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Friday Fri. |
Saturday Sat. |
Sunday Sun. |
1B6.3 Kp3+ | 2B5.79 Kp3 | 3B3.54 Kp1- | 4C1.34 Kp6- | 5B5 Kp5 | 6Kp4- | |
7B2.53 Kp2 | 8C5.79 Kp3- | 9M2.75 Kp1 | 10C6.77 Kp2+ | 11C1.36 Kp3- | 12C3.76 Kp2 | 13M9.49 Kp1 |
14M3.27 Kp5+ | 15X3.3 Kp3- | 16M2.36 Kp2+ | 17C8.78 Kp1+ | 18M9.61 Kp5 | 19M1.22 Kp3- | 20C2.45 Kp3 |
21M1.13 Kp3- | 22B9.18 Kp2- | 23C1.75 Kp1 | 24M5.04 Kp2- | 25C2.29 Kp1 | 26C1.91 Kp1+ | 27C6.1 Kp1 |
28M1.57 Kp1 | ||||||
Latest news
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 |