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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1Kp2+ | ||||||
2Kp0+ | 3Kp4- | 4Kp4- | 5Kp4- | 6Kp2 | 7Kp2 | 8Kp0+ |
9Kp2- | 10B1.96 Kp1- | 11Kp2- | 12B5.98 Kp2- | 13B3.38 Kp1+ | 14Kp4+ | 15Kp4- |
16Kp2 | 17Kp1 | 18Kp2 | 19Kp1+ | 20Kp2+ | 21Kp1+ | 22Kp2 |
23Kp3 | 24Kp3+ | 25Kp2- | 26Kp1 | 27Kp4 | 28Kp3- | |
Latest news
Monday, 30 March 2026
X1.5 solar flare
Tuesday, 17 March 2026
M2.7 solar flare, CME arrival possible
Sunday, 1 February 2026
Complex sunspot region 4366
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Space weather facts
| Last X-flare | 2026/03/30 | X1.5 |
| Last M-flare | 2026/04/09 | M1.0 |
| Last geomagnetic storm | 2026/04/03 | Kp7- (G3) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (3%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2026 | 85.9 +7.7 |
| April 2026 | 85.9 -0 |
| Last 30 days | 93.9 +32.1 |
This day in history*
Aurora on this day in history
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