Solar flares on June 21, 2003
The most powerful solar flare in 24 hours
C2.5 (normal) flare - June 21 at 10:43 AM
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-02:30 (Saint john's) — summer time
List of solar flares for June 21, 2003
The total number of solar flares of class C and higher — 3 flares
C class — 3 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.4 | 14:53 | 15:00 | 15:05 | 386 |
| C2.5 | 10:37 | 10:43 | 10:45 | 388 |
| C2.2 | 00:00 | 00:05 | 00:09 | 388 |