Solar flares on January 20, 2002
The most powerful solar flare in 24 hours
C3.8 (normal) flare - January 20 at 3:52 PM
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+00
List of solar flares for January 20, 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 |
|---|---|---|---|---|
| C2.8 | 23:07 | 23:26 | 23:35 | 9788 |
| C3.8 | 15:43 | 15:52 | 16:06 | 9788 |