Solar flares on May 20, 2003
The most powerful solar flare in 24 hours
C1.4 (normal) flare - May 20 at 7:31 PM
Solar activity index
Value as of the end of the day on May 20, 2003
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from May 19, 2003 to May 20, 2003
Time zone — UTC+00
List of solar flares for May 20, 2003
The total number of solar flares of class C and higher — 4 flares
C class — 4 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.4 | 19:24 | 19:31 | 19:38 | 362 |
| C1.0 | 10:39 | 10:45 | 10:51 | 364 |
| C1.0 | 04:50 | 04:57 | 05:02 | 364 |
| C1.1 | 02:06 | 02:11 | 02:16 | 364 |