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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December 1999 |
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Monday Mon. |
Tuesday Tues. |
Wednesday Wed. |
Thursday Thurs. |
Friday Fri. |
Saturday Sat. |
Sunday Sun. |
1C1.54 Kp2+ | 2C7.59 Kp2+ | 3C9.11 Kp4 | 4C6.16 Kp5 | 5C4.69 Kp4+ | ||
6M1.2 Kp4+ | 7M1.46 Kp4- | 8C6.23 Kp4- | 9C3.21 Kp4- | 10C5.3 Kp3+ | 11C4.13 Kp3+ | 12C1.19 Kp4- |
13C1.59 Kp6- | 14C1.7 Kp1+ | 15C3.6 Kp3 | 16C5.11 Kp2 | 17M1.54 Kp3- | 18M2.19 Kp3- | 19C8.09 Kp2 |
20C6.97 Kp2- | 21M1.61 Kp1 | 22M7.71 Kp0+ | 23C5.34 Kp2- | 24M1.21 Kp4 | 25C8.93 Kp3+ | 26C4.81 Kp2- |
27M2.91 Kp3+ | 28M6.5 Kp3+ | 29M1.27 Kp3+ | 30C3.56 Kp4+ | 31C3.89 Kp6- | ||
Latest news
Sunday, 8 December 2024
X2.2 solar flare, SDO outage
Thursday, 21 November 2024
Major far side eruption, S1 radiation storm
Monday, 11 November 2024
Coronal hole faces Earth
Latest forum messages
jsoc 64Strong far side CME 321Unspecified geomagnetic activity 1746Power transmission for all of us. And why I believe we are better prepared than ever for major solar events 6AR 13932 10
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Space weather facts
| Last X-flare | 2024/12/08 | X2.2 |
| Last M-flare | 2024/12/22 | M1.0 |
| Last geomagnetic storm | 2024/12/17 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2024 | 152.5 -13.9 |
| December 2024 | 103.3 -49.2 |
| Last 30 days | 115.4 -40.8 |