Solar Flare WatchHome › Flare history › 2001
M6.5 solar flare on 2001-10-23
ClassM6.5NOAA report
Peak02:232001-10-23 UTC
Duration23 min
Peak flux6.5e-05W/m²
| Comparison | Value |
|---|---|
| Rank in year | 38 / 2429 |
| Other M/X flares that day | 1 |
| M/X flares that month | 36 |
| Solar cycle | Cycle 23 |
| Position on disk | S18E11 |
| Active region | AR 9672 (21 flares) |
Compared with the strongest flares of 2001
X20.0
X14.4
X6.2
X5.6
X5.3
X3.4
X2.8
X2.6
X2.3
X2.0
X1.7
X1.6
Other M/X flares that day
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 00:13 | 00:23 | 22 | M1.3 | S18E11 | 9672 |
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 2001-10-22X1.3 2001-10-25 →
About this page
A M6.5 flare that began 2001-10-23 02:11 UTC; No. 38 of 2,429 C-class-or-larger flares in 2001.