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X2.6 solar flare on 1982-06-21
ClassX2.6NOAA report
Peak23:031982-06-21 UTC
Duration12 min
Peak flux2.6e-04W/m²
| Comparison | Value |
|---|---|
| Rank among X flares (1975 – Jun 2017) | 136 / 491 |
| Rank in year | 18 / 3850 |
| Other M/X flares that day | 7 |
| M/X flares that month | 136 |
| Solar cycle | Cycle 21 |
| Active region | AR 3781 (60 flares) |
Compared with the strongest flares of 1982
X12.9
X12.0
X10.1
X9.8
X8.0
X7.1
X5.9
X5.0
X4.5
X3.6
X3.2
X3.0
Other M/X flares that day
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 00:58 | 01:28 | 104 | M3.6 | N13W00 | 3781 | |
| 02:44 | 04:55 | 183 | M1.9 | N16W05 | 3781 | |
| 03:50 | 03:56 | 7 | M1.4 | – | 3781 | |
| 04:48 | 04:57 | 19 | M1.3 | – | 3781 | |
| 11:13 | 11:30 | 36 | M1.4 | – | 3781 | |
| 16:07 | 16:11 | 116 | M3.6 | N15W08 | 3781 | |
| 22:14 | 23:06 | 62 | M1.3 | N15W12 | 3781 |
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.
← M5.0 1982-06-20M7.5 1982-06-25 →
About this page
A X2.6 flare that began 1982-06-21 22:55 UTC; No. 18 of 3,850 C-class-or-larger flares in 1982.