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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Friday Fri. |
Saturday Sat. |
Sunday Sun. |
1Kp3- | 2Kp2 | 3Kp2- | 4C1.57 Kp2+ | |||
5C1.12 Kp3 | 6C1.51 Kp2+ | 7M1.17 Kp2- | 8C1.04 Kp1+ | 9C1.03 Kp3- | 10C6.59 Kp2+ | 11C1.17 Kp1- |
12C2.12 Kp2- | 13Kp1- | 14B1.83 Kp1+ | 15B1.88 Kp5- | 16B4.61 Kp2+ | 17B1.73 Kp4- | 18Kp4 |
19Kp4 | 20Kp3- | 21Kp2 | 22Kp4- | 23Kp4+ | 24Kp3+ | 25Kp2 |
26B4.47 Kp3 | 27Kp5+ | 28B3.29 Kp2+ | ||||
Latest news
X1.1 solar flare
Coronal hole faces Earth
Strong G3 geomagnetic storm watch for 23 March
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Latest alerts
00:00 UTC - Solar flare
Moderate M1.79 flare
Friday, 28 March 2025
23:36 UTC - Radio Blackout
Minor R1 radio blackout in progress (≥M1 - current: M1.04)
21:24 UTC - Hemispheric Power Index
The OVATION model predicts the Hemispheric Power Index to reach 51GW at 21:59 UTC
19:45 UTC - Solar flare
Moderate M1.16 flare
19:27 UTC - Radio Blackout
Minor R1 radio blackout in progress (≥M1 - current: M1.1)
Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/03/28 | M1.7 |
| Last geomagnetic storm | 2025/03/27 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2025 | 154.6 +17.6 |
| March 2025 | 128.3 -26.4 |
| Last 30 days | 128.3 -23.7 |