Solar flares — Dec 21, 2003
The strongest solar flare in the day
Flare of C4.5 level (normal) — in 02:46
Solar activity index
Value for Dec 21, 2003 24:00 (end on the day). The maximum value is 10.0
Solar flares in 2 days
Chart of solar activity from Dec 20, 2003 to Dec 21, 2003
Time zone — UTC+00 (London)
This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Dec 21, 2003
Total number of flares of class C and higher — 5 flares
C type — 5 | M type — 0 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
|
C1.1
|
21:24 | 21:30 | 21:36 | 528 |
|
C2.0
|
12:53 | 12:57 | 13:01 | 528 |
|
C2.1
|
10:14 | 10:18 | 10:25 | 525 |
|
C2.0
|
04:10 | 04:16 | 04:21 | — |
|
C4.5
|
02:38 | 02:46 | 03:14 | 528 |