Solar flares on January 21, 2001
The most powerful solar flare in 24 hours
M7.7 (strong) flare - January 21 at 2:50 AM
Solar activity index
Value as of the end of the day on January 21, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from January 20, 2001 to January 21, 2001
Time zone — UTC+05:30 (Ranchi)
List of solar flares for January 21, 2001
The total number of solar flares of class C and higher — 3 flares
C class — 1 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C1.7 | 17:49 | 17:53 | 17:57 | — |
| M7.7 | 02:36 | 02:50 | 03:02 | 9313 |
| M1.2 | 00:03 | 00:17 | 00:29 | 9313 |