Solar flares on May 20, 2002
The most powerful solar flare in 24 hours
X2.1 (very strong) flare - May 20 at 3:27 PM
Solar activity index
Value as of the end of the day on May 20, 2002
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from May 19, 2002 to May 20, 2002
Time zone — UTC+00
List of solar flares for May 20, 2002
The total number of solar flares of class C and higher — 9 flares
C class — 6 | M class — 2 | X class — 1
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.0 | 21:16 | 21:20 | 21:24 | 0 |
| C3.0 | 20:17 | 20:24 | 20:37 | 9961 |
| C1.8 | 19:46 | 19:51 | 19:56 | 9961 |
| C4.1 | 18:15 | 18:20 | 18:25 | 9961 |
| X2.1 | 15:21 | 15:27 | 15:31 | 9961 |
| M5.0 | 10:49 | 10:53 | 10:56 | 9961 |
| M4.7 | 10:14 | 10:29 | 10:34 | 9961 |
| C3.9 | 07:29 | 08:05 | 08:14 | 9961 |
| C2.2 | 07:19 | 07:33 | 07:34 | 0 |