Solar flares — Apr 21, 2003
The strongest solar flare in the day
Flare of M2.8 level (strong) — in 14:07
Solar activity index
Value for Apr 21, 2003 24:00 (end on the day). The maximum value is 10.0
Solar flares in 2 days
Chart of solar activity from Apr 20, 2003 to Apr 21, 2003
Time zone — UTC+01 (London) - summer time
This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Apr 21, 2003
Total number of flares of class C and higher — 4 flares
C type — 3 | M type — 1 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
|
C1.8
|
22:23 | 22:47 | 23:13 | 337 |
|
C1.3
|
20:29 | 20:35 | 20:41 | 339 |
|
C2.3
|
16:51 | 16:59 | 17:03 | 337 |
|
M2.8
|
13:54 | 14:07 | 14:14 | 338 |