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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Sunday Sun. |
1Kp4- | 2Kp2 | 3Kp1 | 4Kp1+ | 5A5.29 Kp2 | 6Kp1+ | 7A7.18 Kp1 |
8Kp4- | 9Kp4- | 10Kp2- | 11Kp1 | 12B2.71 Kp1+ | 13Kp3 | 14Kp5- |
15Kp4- | 16Kp2 | 17Kp1- | 18C1.36 Kp0+ | 19Kp3- | 20B2.11 Kp3 | 21Kp3 |
22C1.34 Kp3+ | 23Kp2 | 24Kp4 | 25Kp3 | 26Kp3 | 27Kp3- | 28Kp2- |
29Kp1 | 30B1.61 Kp2+ | 31Kp3- | ||||
Latest news
Tuesday, 17 March 2026
M2.7 solar flare, CME arrival possible
Sunday, 1 February 2026
Complex sunspot region 4366
Monday, 19 January 2026
CME impact! S4 solar radiation storm
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/03/18 | M2.7 |
| Last geomagnetic storm | 2026/03/23 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (4%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2026 | 78.2 -34.3 |
| March 2026 | 79.2 +1 |
| Last 30 days | 76.8 -5.5 |