Solar flares on May 20, 2002
The most powerful solar flare in 24 hours
X2.1 (very strong) flare - May 20 at 10:27 AM
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-05 (Lincoln) — summer time
List of solar flares for May 20, 2002
The total number of solar flares of class C and higher — 10 flares
C class — 7 | M class — 2 | X class — 1
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.2 | 20:39 | 20:44 | 20:48 | 9961 |
| C2.0 | 16:16 | 16:20 | 16:24 | 0 |
| C3.0 | 15:17 | 15:24 | 15:37 | 9961 |
| C1.8 | 14:46 | 14:51 | 14:56 | 9961 |
| C4.1 | 13:15 | 13:20 | 13:25 | 9961 |
| X2.1 | 10:21 | 10:27 | 10:31 | 9961 |
| M5.0 | 05:49 | 05:53 | 05:56 | 9961 |
| M4.7 | 05:14 | 05:29 | 05:34 | 9961 |
| C3.9 | 02:29 | 03:05 | 03:14 | 9961 |
| C2.2 | 02:19 | 02:33 | 02:34 | 0 |