Solar flares on September 20, 2002
The most powerful solar flare in 24 hours
M1.8 (strong) flare - September 20 at 12:28 PM
Solar activity index
Value as of the end of the day on September 20, 2002
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 19, 2002 to September 20, 2002
Time zone — UTC+03 (Pskov)
List of solar flares for September 20, 2002
The total number of solar flares of class C and higher — 6 flares
C class — 4 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C2.1 | 16:23 | 16:31 | 16:44 | — |
| C2.1 | 14:08 | 14:14 | 14:22 | 126 |
| M1.8 | 12:21 | 12:28 | 12:33 | 126 |
| C1.9 | 11:26 | 11:35 | 11:39 | 115 |
| M1.5 | 08:08 | 08:12 | 08:17 | 126 |
| C2.4 | 04:56 | 05:02 | 05:06 | 119 |