Solar Flare WatchHome › Flare history › Region ranking
Solar flares from active region 9742
C14
M5
X0
LargestM7.12001-12-26
Span11 days
Flares by day
1
1
3
6
1
1
4
1
1
All flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 2001-12-18 | 19:59 | 20:03 | 8 | C3.7 | N10E37 | 9742 |
| 2001-12-19 | 04:52 | 05:17 | 56 | C4.6 | N06E33 | 9742 |
| 2001-12-20 | 15:22 | 15:26 | 11 | C4.4 | N12E22 | 9742 |
| 2001-12-20 | 17:10 | 17:15 | 14 | C2.7 | N06E17 | 9742 |
| 2001-12-20 | 18:08 | 18:12 | 10 | C5.0 | N11E21 | 9742 |
| 2001-12-21 | 00:23 | 00:29 | 16 | C3.5 | N13E16 | 9742 |
| 2001-12-21 | 03:24 | 03:28 | 8 | C3.1 | N13E14 | 9742 |
| 2001-12-21 | 03:55 | 04:06 | 16 | C2.9 | – | 9742 |
| 2001-12-21 | 05:16 | 05:21 | 11 | C4.0 | N13E12 | 9742 |
| 2001-12-21 | 10:03 | 10:08 | 10 | C3.1 | N13E06 | 9742 |
| 2001-12-21 | 13:38 | 13:41 | 7 | C3.1 | N11E06 | 9742 |
| 2001-12-24 | 02:59 | 03:04 | 11 | C3.3 | N11W30 | 9742 |
| 2001-12-25 | 11:30 | 12:05 | 75 | C5.4 | N11W48 | 9742 |
| 2001-12-26 | 04:32 | 05:40 | 135 | M7.1 | N08W54 | 9742 |
| 2001-12-26 | 12:22 | 12:26 | 7 | M1.8 | N10W68 | 9742 |
| 2001-12-26 | 14:09 | 14:12 | 6 | C7.4 | N12W70 | 9742 |
| 2001-12-26 | 17:13 | 17:18 | 18 | M1.3 | N10W72 | 9742 |
| 2001-12-27 | 11:27 | 11:33 | 14 | M1.0 | N08W80 | 9742 |
| 2001-12-28 | 03:42 | 03:51 | 14 | M4.7 | N04W90 | 9742 |
All times UTC. Until June 2017 classes are NOAA's reports of the time (GOES-15 and earlier included a 0.7 scaling factor); later classes come from calibrated GOES-16/18 data, so the same flare reads about 1.4× larger. Do not compare the two periods directly.
About this page
NOAA active region 9742 produced 19 C+ flares between 2001-12-18 and 2001-12-28.