Solar flares on January 28, 2002
The most powerful solar flare in 24 hours
C9.6 (normal) flare - January 28 at 11:49 PM
Solar activity index
Value as of the end of the day on January 28, 2002
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from January 27, 2002 to January 28, 2002
Time zone — UTC+00
List of solar flares for January 28, 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 |
|---|---|---|---|---|
| C9.6 | 23:42 | 23:49 | 23:53 | — |
| C2.6 | 22:34 | 22:37 | 22:42 | 9800 |
| C8.1 | 17:49 | 17:54 | 17:59 | 9800 |
| C4.6 | 11:05 | 11:10 | 11:16 | — |
| C9.6 | 03:00 | 03:10 | 03:27 | 9788 |