Solar flares — Apr 21, 2001
The strongest solar flare in the day
Flare of C4.8 level (normal) — in 05:48
Solar activity index
Value for Apr 21, 2001 24:00 (end on the day). The maximum value is 10.0
Solar flares in 2 days
Chart of solar activity from Apr 20, 2001 to Apr 21, 2001
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, 2001
Total number of flares of class C and higher — 6 flares
C type — 6 | M type — 0 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
|
C3.6
|
23:33 | 23:46 | 23:55 | 9433 |
|
C3.3
|
23:03 | 23:07 | 23:11 | 9433 |
|
C1.7
|
20:29 | 20:33 | 20:36 | 9433 |
|
C1.7
|
19:05 | 19:09 | 19:12 | 9433 |
|
C2.1
|
17:59 | 18:07 | 18:18 | — |
|
C4.8
|
05:39 | 05:48 | 06:08 | — |