Solar flares on March 21, 2003
The most powerful solar flare in 24 hours
C1.8 (normal) flare - March 21 at 2:29 PM
Solar activity index
Value as of the end of the day on March 21, 2003
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from March 20, 2003 to March 21, 2003
Time zone — UTC+00 (London)
List of solar flares for March 21, 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 |
|---|---|---|---|---|
| C1.8 | 14:15 | 14:29 | 14:41 | 314 |
| C1.1 | 08:58 | 09:10 | 09:17 | 314 |