Solar flares — Jan 21, 2001
The strongest solar flare in the day
Flare of M1.1 level (strong) — in 23:12
Solar activity index
Value for Jan 21, 2001 24:00 (end on the day). The maximum value is 10.0

Solar flares in 2 days
Chart of solar activity from Jan 20, 2001 to Jan 21, 2001
Time zone — UTC+00 (London)

This chart in PNG format — high resolution
API data: JSON or TXT
List of solar flares for Jan 21, 2001
Total number of flares of class C and higher — 4 flares
C type — 3 | M type — 1 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
|
M1.1
|
23:08 | 23:12 | 23:19 | 9311 |
|
C4.5
|
21:11 | 21:16 | 21:25 | 9311 |
|
C3.0
|
19:17 | 19:28 | 19:39 | 9313 |
|
C1.7
|
12:19 | 12:23 | 12:27 | — |
