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X1.1 solar flare on 2004-02-26
ClassX1.1NOAA report
Peak02:032004-02-26 UTC
Duration20 min
Peak flux1.1e-04W/m²
| Comparison | Value |
|---|---|
| Rank among X flares (1975 – Jun 2017) | 382 / 491 |
| Rank in year | 9 / 1046 |
| Other M/X flares that day | 1 |
| M/X flares that month | 3 |
| Solar cycle | Cycle 23 |
| Position on disk | N14W14 |
| Active region | AR 10564 (22 flares) |
Compared with the strongest flares of 2004
X3.6
X2.5
X2.0
X1.8
X1.8
X1.6
X1.3
X1.2
X1.1
X1.1
X1.0
X1.0
Other M/X flares that day
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 22:14 | 22:30 | 25 | M5.7 | N14W26 | 10564 |
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.
← M6.1 2004-01-20M5.7 2004-02-26 →
About this page
A X1.1 flare that began 2004-02-26 01:50 UTC; No. 9 of 1,046 C-class-or-larger flares in 2004.