Solar flares on December 21, 2002
The most powerful solar flare in 24 hours
C7.2 (normal) flare - December 21 at 1:44 AM
Solar activity index
Value as of the end of the day on December 21, 2002
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 20, 2002 to December 21, 2002
Time zone — UTC+05:30 (Baj Baj)
List of solar flares for December 21, 2002
The total number of solar flares of class C and higher — 10 flares
C class — 10 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.6 | 15:16 | 15:21 | 15:24 | 226 |
| C4.6 | 10:18 | 10:23 | 10:27 | 226 |
| C2.2 | 10:08 | 10:11 | 10:15 | — |
| C2.9 | 09:09 | 09:19 | 09:26 | 229 |
| C2.4 | 08:16 | 08:22 | 08:27 | 226 |
| C1.7 | 05:28 | 05:32 | 05:38 | 226 |
| C2.0 | 04:47 | 04:51 | 04:54 | 226 |
| C1.7 | 04:31 | 04:34 | 04:37 | 226 |
| C7.2 | 01:40 | 01:44 | 01:46 | 226 |
| C3.5 | 00:27 | 00:34 | 00:36 | — |