Solar flares on December 31, 2003
The most powerful solar flare in 24 hours
M1.0 (strong) flare - December 31 at 6:24 PM
Solar activity index
Value as of the end of the day on December 31, 2003
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 30, 2003 to December 31, 2003
Time zone — UTC+00
List of solar flares for December 31, 2003
The total number of solar flares of class C and higher — 5 flares
C class — 4 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C8.3 | 21:31 | 22:17 | 23:27 | — |
| C1.0 | 20:10 | 20:19 | 20:29 | — |
| M1.0 | 18:21 | 18:24 | 18:26 | 528 |
| C2.2 | 17:59 | 18:08 | 18:16 | — |
| C2.3 | 17:25 | 17:33 | 17:36 | — |