Solar flares on October 28, 2003
The most powerful solar flare in 24 hours
X17.2 (very strong) flare - October 28 at 4:40 PM
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+05:30 (Ambattur)
List of solar flares for October 28, 2003
The total number of solar flares of class C and higher — 11 flares
C class — 9 | M class — 1 | X class — 1
| Class | begin | max | end | region |
|---|---|---|---|---|
| X17.2 | 15:21 | 16:40 | 16:54 | 486 |
| C8.7 | 14:05 | 14:09 | 14:14 | 488 |
| C7.7 | 10:37 | 10:41 | 10:44 | 484 |
| C7.5 | 06:57 | 07:03 | 07:15 | 486 |
| C6.7 | 06:26 | 06:29 | 06:32 | 484 |
| C5.3 | 06:11 | 06:15 | 06:18 | 488 |
| C6.8 | 05:15 | 05:22 | 05:39 | 486 |
| C4.1 | 04:42 | 04:47 | 04:52 | 488 |
| M1.9 | 03:16 | 03:21 | 03:35 | 488 |
| C9.0 | 01:18 | 01:27 | 01:46 | 484 |
| C7.5 | 00:04 | 00:15 | 00:25 | 486 |