Solar flares on October 28, 2003
The most powerful solar flare in 24 hours
X17.2 (very strong) flare - October 28 at 7:10 AM
Solar activity index
Value as of the end of the day on October 28, 2003
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from October 27, 2003 to October 28, 2003
Time zone — UTC-04 (Augusta) — summer time
List of solar flares for October 28, 2003
The total number of solar flares of class C and higher — 4 flares
C class — 2 | M class — 1 | X class — 1
| Class | begin | max | end | region |
|---|---|---|---|---|
| M1.1 | 20:26 | 21:51 | 22:08 | 486 |
| X17.2 | 05:51 | 07:10 | 07:24 | 486 |
| C8.7 | 04:35 | 04:39 | 04:44 | 488 |
| C7.7 | 01:07 | 01:11 | 01:14 | 484 |