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X1.5 solar flare on 1990-03-19
ClassX1.5NOAA report
Peak05:081990-03-19 UTC
Duration101 min
Peak flux1.5e-04W/m²
| Comparison | Value |
|---|---|
| Rank among X flares (1975 – Jun 2017) | 264 / 491 |
| Rank in year | 11 / 2551 |
| Other M/X flares that day | 3 |
| M/X flares that month | 29 |
| Solar cycle | Cycle 22 |
| Position on disk | N31W43 |
| Active region | AR 5969 (24 flares) |
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
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 03:34 | 03:38 | 46 | M1.3 | N31W42 | 5969 | |
| 13:12 | 13:16 | 25 | M1.3 | S34E66 | 5983 | |
| 13:50 | 13:54 | 13 | M4.2 | S14E69 | 5987 |
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.
← M6.9 1990-02-03M7.3 1990-04-03 →
About this page
A X1.5 flare that began 1990-03-19 04:39 UTC; No. 11 of 2,551 C-class-or-larger flares in 1990.