Solar Flare WatchHome › Flare history › 2001
M5.1 solar flare on 2001-04-05
ClassM5.1NOAA report
Peak17:252001-04-05 UTC
Duration77 min
Peak flux5.1e-05W/m²
| Comparison | Value |
|---|---|
| Rank in year | 51 / 2429 |
| Other M/X flares that day | 4 |
| M/X flares that month | 46 |
| Solar cycle | Cycle 23 |
| Position on disk | S24E50 |
| Active region | AR 9415 (27 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 |
|---|---|---|---|---|---|---|
| 02:00 | 02:20 | 71 | M3.1 | – | 9418 | |
| 05:10 | 05:18 | 17 | M1.1 | – | – | |
| 07:57 | 08:34 | 39 | M1.2 | S08E35 | 9417 | |
| 08:37 | 09:22 | 77 | M8.4 | – | 9417 |
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.
← M8.4 2001-04-05X5.6 2001-04-06 →
About this page
A M5.1 flare that began 2001-04-05 16:57 UTC; No. 51 of 2,429 C-class-or-larger flares in 2001.