Solar flares on January 28, 2002
The most powerful solar flare in 24 hours
C9.6 (normal) flare - January 28 at 4:10 AM
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+01 (Monaco)
List of solar flares for January 28, 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 |
|---|---|---|---|---|
| C2.6 | 23:34 | 23:37 | 23:42 | 9800 |
| C8.1 | 18:49 | 18:54 | 18:59 | 9800 |
| C4.6 | 12:05 | 12:10 | 12:16 | — |
| C9.6 | 04:00 | 04:10 | 04:27 | 9788 |