Solar flares on June 21, 2003
The most powerful solar flare in 24 hours
C2.5 (normal) flare - June 21 at 8:13 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-05 (Winnipeg) — summer time
List of solar flares for June 21, 2003
The total number of solar flares of class C and higher — 2 flares
C class — 2 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.4 | 12:23 | 12:30 | 12:35 | 386 |
| C2.5 | 08:07 | 08:13 | 08:15 | 388 |