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X2.4 solar flare on 1990-05-11
ClassX2.4NOAA report
Peak05:481990-05-11 UTC
Duration29 min
Peak flux2.4e-04W/m²
| Comparison | Value |
|---|---|
| Rank among X flares (1975 – Jun 2017) | 159 / 491 |
| Rank in year | 6 / 2551 |
| Other M/X flares that day | 1 |
| M/X flares that month | 36 |
| Solar cycle | Cycle 22 |
Compared with the strongest flares of 1990
X9.3
X5.5
X3.6
X3.4
X3.0
X2.4
X2.2
X1.9
X1.8
X1.7
X1.5
X1.4
Other M/X flares that day
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.
← X3.4 1990-05-10X3.6 1990-05-11 →
About this page
A X2.4 flare that began 1990-05-11 05:37 UTC; No. 6 of 2,551 C-class-or-larger flares in 1990.