Solar Flare WatchHome › Flare history › Region ranking
Solar flares from active region 6021
C16
M4
X1
LargestX2.21990-04-16
Span12 days
Flares by day
2
2
1
1
2
3
3
4
1
1
1
All flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 1990-04-14 | 14:12 | 14:17 | 11 | C3.5 | S16E73 | 6021 |
| 1990-04-14 | 23:23 | 23:30 | 17 | C3.7 | S14E59 | 6021 |
| 1990-04-15 | 11:47 | 11:51 | 26 | M1.0 | S15E61 | 6021 |
| 1990-04-15 | 20:55 | 20:56 | 16 | C6.0 | S14E52 | 6021 |
| 1990-04-16 | 06:30 | 06:36 | 62 | X2.2 | S13E41 | 6021 |
| 1990-04-17 | 16:23 | 16:24 | 6 | C4.4 | S13E32 | 6021 |
| 1990-04-18 | 02:50 | 03:37 | 88 | M1.1 | S13E16 | 6021 |
| 1990-04-18 | 18:57 | 19:04 | 18 | C3.5 | S14E10 | 6021 |
| 1990-04-19 | 03:37 | 03:45 | 34 | C4.9 | S14E13 | 6021 |
| 1990-04-19 | 16:47 | 16:53 | 55 | C3.9 | S16W02 | 6021 |
| 1990-04-19 | 20:45 | 20:48 | 43 | C2.9 | S14W06 | 6021 |
| 1990-04-20 | 00:55 | 01:01 | 15 | C2.8 | S12W05 | 6021 |
| 1990-04-20 | 06:15 | 06:19 | 60 | C6.1 | S11W08 | 6021 |
| 1990-04-20 | 22:07 | 22:11 | 21 | C3.2 | S15W13 | 6021 |
| 1990-04-21 | 06:44 | 06:49 | 87 | M2.3 | S14W20 | 6021 |
| 1990-04-21 | 07:16 | 07:26 | 55 | M2.3 | S14W20 | 6021 |
| 1990-04-21 | 12:23 | 12:24 | 33 | C2.7 | S17W25 | 6021 |
| 1990-04-21 | 19:41 | 19:50 | 30 | C7.2 | S17W29 | 6021 |
| 1990-04-22 | 05:26 | 05:26 | 8 | C2.0 | S16W35 | 6021 |
| 1990-04-24 | 06:22 | 06:39 | 56 | C4.6 | S14W63 | 6021 |
| 1990-04-25 | 06:45 | 06:52 | 13 | C1.8 | S13W70 | 6021 |
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 6021 produced 21 C+ flares between 1990-04-14 and 1990-04-25.