Solar flares on January 20, 2002
The most powerful solar flare in 24 hours
C3.8 (normal) flare - January 20 at 9:52 AM
Solar activity index
Value as of the end of the day on January 20, 2002
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from January 19, 2002 to January 20, 2002
Time zone — UTC-06 (Topeka)
List of solar flares for January 20, 2002
The total number of solar flares of class C and higher — 5 flares
C class — 5 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.6 | 23:36 | 23:39 | 23:41 | 9785 |
| C3.4 | 21:22 | 21:29 | 21:38 | 9788 |
| C1.7 | 19:35 | 19:39 | 19:49 | 9788 |
| C2.8 | 17:07 | 17:26 | 17:35 | 9788 |
| C3.8 | 09:43 | 09:52 | 10:06 | 9788 |