Solar flares on October 20, 2002
The most powerful solar flare in 24 hours
M1.8 (strong) flare - October 20 at 7:58 PM
Solar activity index
Value as of the end of the day on October 20, 2002
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 19, 2002 to October 20, 2002
Time zone — UTC+05:30 (Ranchi)
List of solar flares for October 20, 2002
The total number of solar flares of class C and higher — 16 flares
C class — 12 | M class — 4 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.6 | 23:22 | 23:35 | 23:40 | 154 |
| M1.8 | 19:51 | 19:58 | 20:05 | 160 |
| C6.6 | 19:40 | 19:43 | 19:51 | 154 |
| C5.9 | 19:21 | 19:32 | 19:40 | 162 |
| C2.8 | 15:55 | 16:07 | 16:14 | — |
| C2.4 | 14:39 | 14:45 | 14:49 | 158 |
| C2.0 | 14:29 | 14:33 | 14:36 | 162 |
| C3.6 | 11:41 | 11:44 | 11:47 | 162 |
| C6.9 | 10:57 | 11:01 | 11:04 | 154 |
| M1.2 | 10:31 | 10:44 | 10:49 | 160 |
| M1.5 | 09:01 | 09:09 | 09:30 | 162 |
| C7.5 | 07:49 | 07:53 | 07:57 | 160 |
| M1.8 | 06:02 | 06:15 | 06:41 | 162 |
| C7.9 | 04:16 | 04:31 | 04:44 | — |
| C5.0 | 02:41 | 02:46 | 02:51 | 154 |
| C5.9 | 01:29 | 01:50 | 02:05 | 162 |