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Solar flares from active region 8307
C11
M4
X3
LargestX4.91998-08-18
Span14 days
Flares by day
2
2
1
1
5
1
2
2
1
1
All flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1998-08-18 | 08:14 | 08:24 | 18 | X2.8 | N33E68 | 8307 |
| 1998-08-18 | 22:10 | 22:19 | 18 | X4.9 | N33E87 | 8307 |
| 1998-08-19 | 12:22 | 12:42 | 29 | M2.3 | N35E78 | 8307 |
| 1998-08-19 | 14:04 | 14:26 | 40 | M3.0 | N35E80 | 8307 |
| 1998-08-20 | 00:25 | 00:38 | 32 | C5.7 | N16W81 | 8307 |
| 1998-08-21 | 16:14 | 16:20 | 15 | C1.0 | N32E51 | 8307 |
| 1998-08-22 | 08:44 | 08:48 | 6 | C1.3 | N31E47 | 8307 |
| 1998-08-22 | 13:04 | 13:07 | 6 | C1.4 | N30E45 | 8307 |
| 1998-08-22 | 15:03 | 15:06 | 6 | C1.9 | N30E44 | 8307 |
| 1998-08-22 | 16:45 | 17:08 | 45 | C1.9 | N28E36 | 8307 |
| 1998-08-22 | 19:24 | 19:32 | 16 | C2.2 | N30E34 | 8307 |
| 1998-08-23 | 09:23 | 09:34 | 24 | M2.2 | N32E33 | 8307 |
| 1998-08-24 | 15:21 | 15:25 | 6 | C1.1 | N33E18 | 8307 |
| 1998-08-24 | 21:50 | 22:12 | 45 | X1.0 | N35E09 | 8307 |
| 1998-08-29 | 15:29 | 15:35 | 10 | C2.5 | N30W45 | 8307 |
| 1998-08-29 | 21:49 | 21:52 | 6 | C1.1 | N31W49 | 8307 |
| 1998-08-30 | 12:51 | 12:57 | 9 | C3.1 | N31W56 | 8307 |
| 1998-08-31 | 15:29 | 15:39 | 18 | M1.5 | N32W69 | 8307 |
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 8307 produced 18 C+ flares between 1998-08-18 and 1998-08-31.