Solar flares on January 18, 2002
The most powerful solar flare in 24 hours
C4.0 (normal) flare - January 18 at 7:54 PM
Solar activity index
Value as of the end of the day on January 18, 2002
Solar X-ray emission over the past 2 days
Chart of solar X-ray emission (1-8 Å) from January 17, 2002 to January 18, 2002
Time zone — UTC-05 (Dover)
List of solar flares for January 18, 2002
The total number of solar flares of class C and higher — 3 flares
C class — 3 | M class — 0 | X class — 0
| Class | begin | max | end | region |
|---|---|---|---|---|
| C4.0 | 19:47 | 19:54 | 20:01 | 9787 |
| C2.6 | 10:20 | 11:06 | 11:21 | — |
| C1.7 | 06:53 | 07:01 | 07:08 | — |