Viewing archive of Thursday, 31 January 2002
| Sunspot number | New regions | Background flux | Maximum flux | C | M |
|---|---|---|---|---|---|
| 238 28 | 2 1 | C1.7 | M3.64 | 5 | 1 |
Solar flares
| Region | Start | Maximum | End | |
|---|---|---|---|---|
| 9802 | C3.3 | 10:07 | 10:12 | 10:17 |
| 9798 | C2.2 | 11:53 | 12:04 | 12:29 |
| 9800 | C4.3 | 14:20 | 14:25 | 14:35 |
| - | M3.6 | 14:36 | 14:44 | 14:50 |
| 9802 | C4.6 | 15:20 | 15:25 | 15:37 |
| 9800 | C4.9 | 16:40 | 16:47 | 16:55 |
Latest news
Wednesday, 1 January 2020 - 00:00 UTC
Happy New Year!
Tuesday, 10 December 2019 - 18:50 UTC
Official Solar Cycle 25 Forecast Update
Monday, 9 December 2019 - 21:40 UTC
Welcome GOES-16!
Latest forum messages
- Helio-Casting; Unlocking Solar Secrets, by 'theartist' 16
- Space Environment Monitor (SEM) 'Triggers' for Earthquake Alert Proxy 70
- Solar Cycle 'Rosetta Stone' Has Been Found!?! 18
- Ap & aa Indices and Solar Minimum 58
- Changelog/Featurelog 94
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Space weather facts
| Last X-flare: | 2017/09/10 | X8.2 |
| Last M-flare: | 2017/10/20 | M1.0 |
| Last geomagnetic storm: | 2019/10/26 | Kp5 (G1) |
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