Solar flares on June 21, 2002
The most powerful solar flare in 24 hours
C1.8 (normal) flare - June 21 at 8:20 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+00
List of solar flares for June 21, 2002
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 |
|---|---|---|---|---|
| C1.8 | 19:59 | 20:20 | 20:58 | — |
| C1.6 | 04:24 | 05:06 | 06:22 | — |