Solar Flare WatchHome › Flare history › 2003
X1.1 solar flare on 2003-10-19
ClassX1.1NOAA report
Peak16:502003-10-19 UTC
Duration35 min
Peak flux1.1e-04W/m²
| Comparison | Value |
|---|---|
| Rank among X flares (1975 – Jun 2017) | 380 / 491 |
| Rank in year | 19 / 1496 |
| Other M/X flares that day | 2 |
| M/X flares that month | 44 |
| Solar cycle | Cycle 23 |
| Position on disk | N08E58 |
| Active region | AR 10484 (48 flares) |
Compared with the strongest flares of 2003
X28.0
X17.2
X10.0
X8.3
X5.4
X3.9
X3.6
X2.7
X1.7
X1.6
X1.5
X1.5
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.
← M6.8 2003-06-17M9.9 2003-10-22 →
About this page
A X1.1 flare that began 2003-10-19 16:29 UTC; No. 19 of 1,496 C-class-or-larger flares in 2003.