Solar Flare WatchHome › Flare history › 2003
M9.3 solar flare on 2003-05-31
ClassM9.3NOAA report
Peak02:242003-05-31 UTC
Duration27 min
Peak flux9.3e-05W/m²
| Comparison | Value |
|---|---|
| Rank in year | 23 / 1496 |
| Other M/X flares that day | 0 |
| M/X flares that month | 11 |
| Solar cycle | Cycle 23 |
| Position on disk | S07W65 |
| Active region | AR 10365 (28 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
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.
← X1.2 2003-05-29M6.5 2003-06-02 →
About this page
A M9.3 flare that began 2003-05-31 02:13 UTC; No. 23 of 1,496 C-class-or-larger flares in 2003.