Solar flares on June 21, 2003
The most powerful solar flare in 24 hours
C2.5 (normal) flare - June 21 at 3:13 PM
Solar activity index
Value as of the end of the day on June 21, 2003
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from June 20, 2003 to June 21, 2003
Time zone — UTC+02 (Zagreb) — summer time
List of solar flares for June 21, 2003
The total number of solar flares of class C and higher — 5 flares
C class — 5 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.4 | 19:23 | 19:30 | 19:35 | 386 |
| C2.5 | 15:07 | 15:13 | 15:15 | 388 |
| C2.2 | 04:30 | 04:35 | 04:39 | 388 |
| C1.7 | 02:09 | 02:14 | 02:18 | 386 |
| C1.0 | 00:21 | 00:31 | 00:45 | 386 |