Solar flares — Sep 21, 2001
The strongest solar flare in the day
Flare of C7.7 level (normal) — in 08:02
Solar activity index
Value for Sep 21, 2001 24:00 (end on the day). The maximum value is 10.0

Solar flares in 2 days
Chart of solar activity from Sep 20, 2001 to Sep 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 Sep 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 | |
|---|---|---|---|---|
|
C3.8
|
21:08 | 21:12 | 21:18 | 9631 |
|
C3.6
|
17:42 | 17:45 | 17:47 | 9632 |
|
C7.7
|
07:44 | 08:02 | 08:07 | 9631 |
|
C3.1
|
07:36 | 07:40 | 07:42 | 9632 |
|
C4.1
|
05:48 | 05:55 | 06:02 | 9620 |
|
C2.5
|
02:17 | 02:29 | 02:32 | 9620 |
