Solar flares on January 4, 2002
The most powerful solar flare in 24 hours
M1.0 (strong) flare - January 4 at 10:49 AM
Solar activity index
Value as of the end of the day on January 4, 2002
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from January 3, 2002 to January 4, 2002
Time zone — UTC-07 (Phoenix)
List of solar flares for January 4, 2002
The total number of solar flares of class C and higher — 9 flares
C class — 8 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C8.0 | 22:59 | 23:31 | 23:47 | 9773 |
| C4.1 | 20:04 | 20:10 | 20:15 | 9768 |
| C3.1 | 17:57 | 18:00 | 18:03 | 9767 |
| C7.2 | 15:53 | 15:56 | 15:58 | 9767 |
| C8.7 | 12:51 | 13:23 | 14:04 | 9773 |
| C5.6 | 11:25 | 11:29 | 11:34 | 9773 |
| M1.0 | 10:43 | 10:49 | 10:54 | — |
| C3.7 | 02:24 | 02:52 | 03:35 | — |
| C3.6 | 01:17 | 01:23 | 01:30 | — |