Solar flares on July 28, 2001
The most powerful solar flare in 24 hours
C7.8 (normal) flare - July 28 at 3:53 PM
Solar activity index
Value as of the end of the day on July 28, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from July 27, 2001 to July 28, 2001
Time zone — UTC+02 (Bern) — summer time
List of solar flares for July 28, 2001
The total number of solar flares of class C and higher — 2 flares
C class — 2 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C7.8 | 15:41 | 15:53 | 16:08 | — |
| C1.2 | 02:33 | 03:32 | 04:06 | — |