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Solar flares from active region 11991
C11
M3
X0
LargestM1.12014-02-26
Span11 days
Flares by day
1
5
1
1
2
3
1
All flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 2014-02-26 | 14:52 | 15:01 | 18 | M1.1 | S21E70 | 11991 |
| 2014-02-27 | 02:37 | 02:41 | 10 | C1.5 | S24E66 | 11991 |
| 2014-02-27 | 07:18 | 07:21 | 6 | C2.0 | S22E61 | 11991 |
| 2014-02-27 | 08:34 | 08:38 | 6 | C2.1 | S22E61 | 11991 |
| 2014-02-27 | 15:36 | 15:39 | 5 | C1.8 | S23E57 | 11991 |
| 2014-02-27 | 21:33 | 22:12 | 64 | C4.2 | S23E57 | 11991 |
| 2014-02-28 | 00:44 | 00:48 | 6 | M1.1 | S24E53 | 11991 |
| 2014-03-02 | 11:55 | 12:05 | 19 | C2.4 | S25E23 | 11991 |
| 2014-03-04 | 04:49 | 04:55 | 10 | C8.3 | S26W01 | 11991 |
| 2014-03-04 | 08:27 | 08:32 | 8 | C2.7 | S26E00 | 11991 |
| 2014-03-05 | 00:10 | 00:16 | 9 | C4.8 | S27W07 | 11991 |
| 2014-03-05 | 01:52 | 01:58 | 9 | C2.8 | S28W08 | 11991 |
| 2014-03-05 | 02:06 | 02:10 | 6 | M1.0 | S28W08 | 11991 |
| 2014-03-08 | 05:41 | 05:44 | 6 | C1.6 | S27W56 | 11991 |
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 11991 produced 14 C+ flares between 2014-02-26 and 2014-03-08.