Solar flares on April 18, 2003
The most powerful solar flare in 24 hours
M1.1 (strong) flare - April 18 at 10:58 PM
Solar activity index
Value as of the end of the day on April 18, 2003
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from April 17, 2003 to April 18, 2003
Time zone — UTC+03 (Moscow)
List of solar flares for April 18, 2003
The total number of solar flares of class C and higher — 2 flares
C class — 1 | M class — 1 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| M1.1 | 22:50 | 22:58 | 23:02 | 337 |
| C4.4 | 01:04 | 01:16 | 01:36 | — |