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 1999 |
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Monday Mon. |
Tuesday Tues. |
Wednesday Wed. |
Thursday Thurs. |
Friday Fri. |
Saturday Sat. |
Sunday Sun. |
1B6.83 Kp4+ | 2M1.59 Kp3+ | 3M6.2 Kp4- | 4M6.76 Kp4 | |||
5C4.83 Kp3+ | 6C5.07 Kp4 | 7C2.31 Kp4- | 8M1.66 Kp4 | 9C2.53 Kp2+ | 10C2.26 Kp4- | 11C3.89 Kp3 |
12C1.74 Kp4- | 13C2.77 Kp1+ | 14Kp3 | 15C1.66 Kp1+ | 16B7.76 Kp5 | 17B8.64 Kp7+ | 18C1.1 Kp3- |
19C1.16 Kp4- | 20C1.4 Kp4+ | 21C2.46 Kp4+ | 22C6.49 Kp2- | 23B9.06 Kp2- | 24B4.91 Kp2+ S1 | 25B8.54 Kp2+ S1 |
26B4.9 Kp2+ | 27C1.99 Kp4+ | 28C5.51 Kp5- | 29M1.7 Kp5- | 30M1.17 Kp4+ | ||
Latest news
Sunday, 7 December 2025
M8.1 solar flare with earth-directed CME
Monday, 1 December 2025
X1.9 solar flare, Coronal hole faces Earth
Friday, 14 November 2025
X4.0 solar flare
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AR 4299 112AR4299 M8.1 CME 2025/12/06 83AR4294 / 4296 / 4298 371New paper on the Gannon Storm 10-11 May 2024 2Electron event 10
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Space weather facts
| Last X-flare | 2025/12/01 | X1.9 |
| Last M-flare | 2025/12/08 | M2.0 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 167.7 +75.9 |
| Last 30 days | 107.1 +12.4 |