Solar flares on March 17, 2003
The most powerful solar flare in 24 hours
X1.5 (very strong) flare - March 17 at 1:05 PM
Solar activity index
Value as of the end of the day on March 17, 2003
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from March 16, 2003 to March 17, 2003
Time zone — UTC-06 (Fort Smith) — summer time
List of solar flares for March 17, 2003
The total number of solar flares of class C and higher — 8 flares
C class — 6 | M class — 1 | X class — 1
| Class | begin | max | end | region |
|---|---|---|---|---|
| C7.5 | 21:32 | 22:05 | 22:26 | 314 |
| C4.7 | 19:39 | 19:53 | 20:06 | 314 |
| M1.6 | 18:30 | 18:37 | 18:42 | 314 |
| C1.7 | 17:52 | 17:56 | 18:00 | 314 |
| C6.9 | 14:14 | 14:21 | 14:28 | — |
| X1.5 | 12:50 | 13:05 | 13:16 | 314 |
| C7.7 | 10:35 | 10:50 | 11:01 | 314 |
| C2.1 | 09:18 | 09:51 | 10:10 | — |