Solar flares on January 20, 2002
The most powerful solar flare in 24 hours
C3.8 (normal) flare - January 20 at 10:52 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-05 (Lansing)
List of solar flares for January 20, 2002
The total number of solar flares of class C and higher — 4 flares
C class — 4 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.4 | 22:22 | 22:29 | 22:38 | 9788 |
| C1.7 | 20:35 | 20:39 | 20:49 | 9788 |
| C2.8 | 18:07 | 18:26 | 18:35 | 9788 |
| C3.8 | 10:43 | 10:52 | 11:06 | 9788 |