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X3.9 solar flare on 2003-11-03
ClassX3.9NOAA report
Peak09:552003-11-03 UTC
Duration36 min
Peak flux3.9e-04W/m²
| Comparison | Value |
|---|---|
| Rank among X flares (1975 – Jun 2017) | 77 / 491 |
| Rank in year | 6 / 1496 |
| Other M/X flares that day | 2 |
| M/X flares that month | 28 |
| Solar cycle | Cycle 23 |
| Position on disk | N08W77 |
| Active region | AR 10488 (26 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.
← X2.7 2003-11-03X28.0 2003-11-04 →
About this page
A X3.9 flare that began 2003-11-03 09:43 UTC; No. 6 of 1,496 C-class-or-larger flares in 2003.