Solar flares on December 16, 2001
The most powerful solar flare in 24 hours
M1.5 (strong) flare - December 16 at 3:24 AM
Solar activity index
Value as of the end of the day on December 16, 2001
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from December 15, 2001 to December 16, 2001
Time zone — UTC+02 (Bucharest)
List of solar flares for December 16, 2001
The total number of solar flares of class C and higher — 6 flares
C class — 4 | M class — 2 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C3.2 | 16:15 | 16:24 | 16:34 | 9743 |
| C2.7 | 12:43 | 13:11 | 13:19 | — |
| C8.5 | 09:33 | 09:43 | 09:57 | 9733 |
| M1.0 | 05:09 | 05:28 | 05:48 | 9733 |
| M1.5 | 03:14 | 03:24 | 03:29 | 9733 |
| C3.5 | 01:11 | 01:15 | 01:18 | 9733 |
Diary
- 04.08.2026 The magnetic storm has ended
- 02.08.2026 The first magnetic storm of August has begun
- 02.08.2026 A moderate magnetic storm is expected today, Sunday.