Solar flares on June 13, 2003
The most powerful solar flare in 24 hours
M1.8 (strong) flare - June 13 at 2:45 AM
Solar activity index
Value as of the end of the day on June 13, 2003
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from June 12, 2003 to June 13, 2003
Time zone — UTC-04 (Quebec) — summer time
List of solar flares for June 13, 2003
The total number of solar flares of class C and higher — 6 flares
C class — 4 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C7.5 | 22:49 | 22:53 | 22:59 | 380 |
| C8.7 | 16:12 | 16:34 | 17:07 | — |
| C4.6 | 13:30 | 13:34 | 13:36 | — |
| C4.4 | 12:18 | 12:23 | 12:30 | — |
| M1.8 | 02:28 | 02:45 | 03:19 | 375 |
| M1.7 | 00:31 | 00:37 | 00:43 | 375 |