Solar flares on July 28, 2003
The most powerful solar flare in 24 hours
M1.3 (strong) flare - July 28 at 5:39 PM
Solar activity index
Value as of the end of the day on July 28, 2003
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from July 27, 2003 to July 28, 2003
Time zone — UTC-08 (Anchorage) — summer time
List of solar flares for July 28, 2003
The total number of solar flares of class C and higher — 4 flares
C class — 3 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.0 | 21:32 | 21:48 | 21:50 | 421 |
| M1.3 | 17:28 | 17:39 | 17:43 | 421 |
| C1.0 | 05:43 | 05:49 | 05:57 | 422 |
| C1.2 | 03:07 | 03:12 | 03:14 | 421 |