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. |
1Kp2- | ||||||
2A1.57 Kp1 | 3Kp0+ | 4Kp2- | 5Kp1- | 6Kp1 | 7Kp1- | 8Kp1+ |
9Kp3- | 10Kp2 | 11Kp3- | 12Kp2- | 13A0.45 Kp2 | 14Kp1+ | 15Kp2+ |
16Kp1 | 17Kp1 | 18Kp4 | 19Kp4- | 20A1.3 Kp2+ | 21Kp2+ | 22Kp2- |
23Kp1+ | 24Kp1+ | 25Kp2- | 26Kp2+ | 27A1.1 Kp1 | 28Kp1- | 29Kp1- |
30Kp1- | 31Kp1+ | |||||
Latest news
X1.1 solar flare
Coronal hole faces Earth
Strong G3 geomagnetic storm watch for 23 March
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Latest alerts
02:15 UTC - Solar protons
Moderate S2 Solar Radiation Storm - Infrequent effects on HF radio through polar regions and satellite operations
Monday, 31 March 2025
11:15 UTC - Solar protons
Minor S1 Solar Radiation Storm - Minor impacts on HF radio through polar regions
10:45 UTC - Solar flare
Moderate M1.26 flare
10:27 UTC - Radio Blackout
Minor R1 radio blackout in progress (≥M1 - current: M1.22)
00:09 UTC - Solar flare
Moderate M1.03 flare
Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/03/31 | M1.2 |
| 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 |
| Last 30 days | 127.7 -23.5 |