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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April 2003 |
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Tuesday Tues. |
Wednesday Wed. |
Thursday Thurs. |
Friday Fri. |
Saturday Sat. |
Sunday Sun. |
1C3.37 Kp5- | 2C5.23 Kp5- | 3C9.31 Kp4+ | 4M2.74 Kp5 | 5M1 Kp5+ | 6C8.54 Kp3 | |
7C3.8 Kp3- | 8C1.11 Kp5- | 9M3.68 Kp5- | 10C1.05 Kp4+ | 11M1.06 Kp4 | 12C1.28 Kp3+ | 13C3.95 Kp3+ |
14C1.64 Kp4+ | 15B6.32 Kp4 | 16B3.05 Kp5+ | 17C6.38 Kp5 | 18M1.6 Kp4+ | 19B8.24 Kp3 | 20C6.36 Kp4- |
21M4.14 Kp5- | 22C5.73 Kp4+ | 23M7.4 Kp4 | 24M4.84 Kp5 | 25M1.84 Kp5+ | 26X1 Kp4 S1 | 27M2.46 Kp4- |
28C6.38 Kp4+ | 29M1.69 Kp6 | 30C1.67 Kp6 | ||||
Latest news
Wednesday, 14 May 2025
Another X-flare! Potent sunspot region 4087!
Tuesday, 13 May 2025
X1.1 solar flare from sunspot region 4086
Tuesday, 15 April 2025
CME arrival, G3 storm watch
Latest forum messages
Unspecified geomagnetic activity 2580AR14099 17The best of 2024 by the STCE 3AR 14100 40Filaments and prominences 179
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Space weather facts
| Last X-flare | 2025/05/25 | X1.1 |
| Last M-flare | 2025/05/26 | M1.4 |
| Last geomagnetic storm | 2025/05/17 | Kp6+ (G2) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2025 | 140.6 +6.4 |
| May 2025 | 79.8 -60.8 |
| Last 30 days | 79.7 -46.3 |