Solar flares on January 20, 2003
The most powerful solar flare in 24 hours
C8.1 (normal) flare - January 20 at 6:28 PM
Solar activity index
Value as of the end of the day on January 20, 2003
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from January 19, 2003 to January 20, 2003
Time zone — UTC-08 (Olympia)
List of solar flares for January 20, 2003
The total number of solar flares of class C and higher — 7 flares
C class — 7 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C4.1 | 21:50 | 21:57 | 22:02 | 260 |
| C8.1 | 18:23 | 18:28 | 18:33 | — |
| C2.0 | 17:21 | 17:34 | 17:40 | — |
| C1.5 | 15:53 | 15:58 | 16:01 | — |
| C1.6 | 15:22 | 15:27 | 15:35 | 260 |
| C1.5 | 13:43 | 13:46 | 13:49 | 267 |
| C1.7 | 10:30 | 11:21 | 11:33 | — |