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 1998 |
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Monday Mon. |
Tuesday Tues. |
Wednesday Wed. |
Thursday Thurs. |
Friday Fri. |
Saturday Sat. |
Sunday Sun. |
1C3.93 Kp1+ | 2C3.07 Kp2+ | 3C8.89 Kp3- | 4C8.11 Kp3+ | 5M1.31 Kp2- | ||
6M1.49 Kp2 | 7C1.86 Kp3 | 8C7.51 Kp3 | 9C3.81 Kp2 | 10C3 Kp4+ | 11C5.9 Kp3+ | 12C1.27 Kp4 |
13C1.76 Kp3- | 14B7.26 Kp3- | 15M1.29 Kp1+ | 16M1.24 Kp3- | 17Kp4 | 18Kp3 | 19B8.14 Kp3- |
20M1.96 Kp4- S2 | 21B5.66 Kp3- S3 | 22B3.49 Kp3- S2 | 23X1.77 Kp5 S2 | 24M1.16 Kp6- S1 | 25C4.79 Kp5 S1 | 26B3.43 Kp5 |
27X1.54 Kp4 | 28C1.07 Kp3 | 29M9.27 Kp2- | 30C8.71 Kp4 | |||
Latest news
Sunday, 1 February 2026
Complex sunspot region 4366
Monday, 19 January 2026
CME impact! S4 solar radiation storm
Sunday, 18 January 2026
X1.9 solar flare with earth-directed CME
Latest forum messages
AR4387 / AR4389 7Unspecified geomagnetic activity 93Solar Cycle 25 25Available resources & tools / space weather databases 10AR4381 15
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/02/25 | M2.4 |
| Last geomagnetic storm | 2026/03/03 | 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 | 74.4 -3.8 |
| Last 30 days | 52.8 -75.1 |