Solar flares on March 21, 2001
The most powerful solar flare in 24 hours
C9.8 (normal) flare - March 21 at 7:27 AM
Solar activity index
Value as of the end of the day on March 21, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from March 20, 2001 to March 21, 2001
Time zone — UTC-04 (Dover) — summer time
List of solar flares for March 21, 2001
The total number of solar flares of class C and higher — 7 flares
C class — 7 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C6.4 | 21:52 | 22:04 | 22:23 | — |
| C2.1 | 16:05 | 16:12 | 16:15 | — |
| C1.7 | 09:00 | 09:05 | 09:17 | — |
| C9.8 | 07:22 | 07:27 | 07:32 | 9373 |
| C1.9 | 06:45 | 06:48 | 06:55 | — |
| C2.3 | 06:22 | 06:27 | 06:31 | — |
| C5.6 | 02:56 | 03:24 | 03:30 | 9389 |