Solar flares on September 30, 2001
The most powerful solar flare in 24 hours
M1.0 (strong) flare - September 30 at 2:41 PM
Solar activity index
Value as of the end of the day on September 30, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from September 29, 2001 to September 30, 2001
Time zone — UTC+03 (Riga)
List of solar flares for September 30, 2001
The total number of solar flares of class C and higher — 10 flares
C class — 9 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C5.1 | 22:46 | 23:14 | 23:29 | — |
| C4.4 | 21:41 | 21:45 | 21:51 | 9636 |
| C5.1 | 20:44 | 20:52 | 20:57 | — |
| C6.6 | 20:27 | 20:33 | 20:36 | 9628 |
| M1.0 | 14:31 | 14:41 | 15:19 | 9628 |
| C3.3 | 12:40 | 12:42 | 12:45 | 9637 |
| C6.1 | 11:10 | 11:39 | 11:45 | 9636 |
| C5.8 | 09:49 | 09:53 | 10:04 | 9636 |
| C8.4 | 08:29 | 09:06 | 09:20 | 9636 |
| C8.3 | 06:38 | 07:01 | 07:18 | — |