Solar flares — Dec 21, 2001
The strongest solar flare in the day
Flare of C4.0 level (normal) — in 05:21
Solar activity index
Value for Dec 21, 2001 24:00 (end on the day). The maximum value is 10.0
Solar flares in 2 days
Chart of solar activity from Dec 20, 2001 to Dec 21, 2001
Time zone — UTC+00 (London)
This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Dec 21, 2001
Total number of flares of class C and higher — 8 flares
C type — 8 | M type — 0 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
|
C3.5
|
21:30 | 21:52 | 22:16 | 9749 |
|
C3.1
|
13:38 | 13:41 | 13:45 | 9742 |
|
C3.1
|
10:03 | 10:08 | 10:13 | 9742 |
|
C4.0
|
05:16 | 05:21 | 05:27 | 9742 |
|
C2.9
|
03:55 | 04:06 | 04:11 | 9742 |
|
C3.1
|
03:24 | 03:28 | 03:32 | 9742 |
|
C3.7
|
00:48 | 00:53 | 00:59 | — |
|
C3.5
|
00:23 | 00:29 | 00:39 | 9742 |