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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Wednesday Wed. |
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Sunday Sun. |
1Kp2 | 2B1 Kp4 | 3Kp4 | 4Kp3 | 5Kp3- | 6Kp3+ | 7Kp5- |
8Kp3 | 9Kp2 | 10B5.7 Kp1 | 11Kp1 | 12Kp3- | 13Kp4+ | 14Kp2 |
15Kp3- | 16Kp4 | 17Kp2+ | 18B1.3 Kp2 | 19B1.7 Kp4 | 20B1.1 Kp4+ | 21Kp4+ |
22B5.4 Kp4 | 23B3.3 Kp4- | 24B2.6 Kp4+ | 25B4.6 Kp4 | 26B9.5 Kp3 | 27C2.7 Kp2- | 28C3.9 Kp3- |
Latest news
Coronal hole faces Earth
Strong G3 geomagnetic storm watch for 23 March
Coronal hole faces Earth
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Latest alerts
09:15 UTC - Geomagnetic activity
Minor G1 geomagnetic storm (Kp5) Threshold Reached: 08:59 UTC
06:27 UTC - Hemispheric Power Index
The OVATION model predicts the Hemispheric Power Index to reach 54GW at 07:01 UTC
06:00 UTC - Geomagnetic activity
Minor G1 geomagnetic storm (Kp5) Threshold Reached: 05:51 UTC
00:57 UTC - Solar flare
Moderate M2.05 flare
00:33 UTC - Radio Blackout
Minor R1 radio blackout in progress (≥M1 - current: M1.71)
Space weather facts
| Last X-flare | 2025/02/23 | X2.0 |
| Last M-flare | 2025/03/27 | M2.0 |
| Last geomagnetic storm | 2025/03/26 | Kp6+ (G2) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2025 | 154.6 +17.6 |
| March 2025 | 132.3 -22.3 |
| Last 30 days | 131.2 -21.8 |