Solar flares on June 21, 2002
The most powerful solar flare in 24 hours
C2.0 (normal) flare - June 21 at 10:36 PM
Solar activity index
Value as of the end of the day on June 21, 2002
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from June 20, 2002 to June 21, 2002
Time zone — UTC-04 (Belleville) — summer time
List of solar flares for June 21, 2002
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 |
|---|---|---|---|---|
| C2.0 | 22:29 | 22:36 | 22:48 | 5 |
| C1.8 | 15:59 | 16:20 | 16:58 | — |
| C1.6 | 00:24 | 01:06 | 02:22 | — |