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Solar flares from active region 8647
C7
M2
X1
LargestX1.41999-08-02
Span4 days
Flares by day
2
3
4
1
All flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1999-08-02 | 15:31 | 15:35 | 12 | C6.2 | S19W43 | 8647 |
| 1999-08-02 | 21:18 | 21:25 | 20 | X1.4 | S18W46 | 8647 |
| 1999-08-03 | 02:53 | 02:56 | 6 | C2.5 | S17W48 | 8647 |
| 1999-08-03 | 04:58 | 05:02 | 12 | C5.7 | S18W48 | 8647 |
| 1999-08-03 | 08:39 | 08:42 | 6 | C1.9 | S18W54 | 8647 |
| 1999-08-04 | 04:11 | 04:14 | 6 | C4.4 | S17W62 | 8647 |
| 1999-08-04 | 05:45 | 05:57 | 29 | M6.0 | S16W64 | 8647 |
| 1999-08-04 | 08:53 | 08:57 | 9 | C3.9 | S18W69 | 8647 |
| 1999-08-04 | 15:49 | 16:07 | 36 | M1.2 | S17W63 | 8647 |
| 1999-08-05 | 03:38 | 03:42 | 8 | C4.9 | S15W74 | 8647 |
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 8647 produced 10 C+ flares between 1999-08-02 and 1999-08-05.