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X1.1 solar flare on 2004-07-16
ClassX1.1NOAA report
Peak10:412004-07-16 UTC
Duration14 min
Peak flux1.1e-04W/m²
| Comparison | Value |
|---|---|
| Rank among X flares (1975 – Jun 2017) | 383 / 491 |
| Rank in year | 10 / 1046 |
| Other M/X flares that day | 3 |
| M/X flares that month | 39 |
| Solar cycle | Cycle 23 |
| Position on disk | S10E36 |
| Active region | AR 10649 (62 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 |
|---|---|---|---|---|---|---|
| 01:43 | 02:06 | 29 | X1.3 | S11E41 | 10649 | |
| 13:49 | 13:55 | 12 | X3.6 | S10E35 | 10649 | |
| 16:22 | 16:28 | 9 | M1.2 | S10E32 | 10649 |
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.
← X1.3 2004-07-16X3.6 2004-07-16 →
About this page
A X1.1 flare that began 2004-07-16 10:32 UTC; No. 10 of 1,046 C-class-or-larger flares in 2004.