Solar flares on February 20, 2002
The most powerful solar flare in 24 hours
M5.1 (strong) flare - February 20 at 1:12 AM
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-05 (Kapuskasing)
List of solar flares for February 20, 2002
The total number of solar flares of class C and higher — 11 flares
C class — 7 | M class — 4 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.6 | 23:41 | 23:48 | 00:10 | 9825 |
| C5.7 | 19:45 | 19:54 | 20:27 | — |
| M2.4 | 16:00 | 16:07 | 16:09 | 9830 |
| M3.5 | 12:03 | 12:11 | 12:18 | — |
| C9.7 | 11:18 | 11:26 | 11:29 | 9830 |
| C3.1 | 09:26 | 09:29 | 09:33 | — |
| C4.5 | 06:29 | 06:39 | 06:47 | 9825 |
| C7.5 | 06:02 | 06:07 | 06:12 | 9825 |
| M4.3 | 04:46 | 04:59 | 05:04 | 9825 |
| C2.5 | 02:41 | 02:44 | 02:46 | 9825 |
| M5.1 | 00:52 | 01:12 | 01:16 | 9825 |