Solar flares — May 21, 2002
The strongest solar flare in the day
Flare of M1.5 level (strong) — in 22:39
Solar activity index
Value for May 21, 2002 24:00 (end on the day). The maximum value is 10.0

Solar flares in 2 days
Chart of solar activity from May 20, 2002 to May 21, 2002
Time zone — UTC+01 (London) - summer time

This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for May 21, 2002
Total number of flares of class C and higher — 5 flares
C type — 4 | M type — 1 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
|
M1.5
|
22:20 | 22:39 | 23:00 | 9960 |
|
C3.2
|
18:17 | 18:23 | 18:30 | 9963 |
|
C1.9
|
11:15 | 11:21 | 11:29 | 9960 |
|
C4.8
|
05:58 | 06:03 | 06:10 | 9960 |
|
C2.2
|
02:39 | 02:44 | 02:48 | 9961 |
