Solar flares on September 17, 2003
The most powerful solar flare in 24 hours
C2.4 (normal) flare - September 17 at 4:06 AM
Solar activity index
Value as of the end of the day on September 17, 2003
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 16, 2003 to September 17, 2003
Time zone — UTC+00
List of solar flares for September 17, 2003
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 |
|---|---|---|---|---|
| C2.4 | 03:45 | 04:06 | 05:39 | — |
| C1.9 | 01:20 | 01:42 | 02:00 | — |