Solar flares on February 20, 2002
The most powerful solar flare in 24 hours
M5.1 (strong) flare - February 20 at 1:12 PM
Solar activity index
Value as of the end of the day on February 20, 2002
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from February 19, 2002 to February 20, 2002
Time zone — UTC+07 (Barnaul)
List of solar flares for February 20, 2002
The total number of solar flares of class C and higher — 11 flares
C class — 8 | M class — 3 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C9.7 | 23:18 | 23:26 | 23:29 | 9830 |
| C3.1 | 21:26 | 21:29 | 21:33 | — |
| C4.5 | 18:29 | 18:39 | 18:47 | 9825 |
| C7.5 | 18:02 | 18:07 | 18:12 | 9825 |
| M4.3 | 16:46 | 16:59 | 17:04 | 9825 |
| C2.5 | 14:41 | 14:44 | 14:46 | 9825 |
| M5.1 | 12:52 | 13:12 | 13:16 | 9825 |
| M4.2 | 09:44 | 09:51 | 09:56 | 9825 |
| C1.7 | 09:14 | 09:18 | 09:21 | — |
| C2.1 | 08:10 | 08:14 | 08:19 | 9830 |
| C1.3 | 05:27 | 05:31 | 05:33 | — |