Solar Flare WatchHome › Flare history › 2024
X1.1 solar flare on 2024-03-28
ClassX1.1GOES-16 science data
Peak20:562024-03-28 UTC
Duration9 min
Peak flux1.1e-04W/m²
| Comparison | Value |
|---|---|
| Rank among X flares (since Jun 2017) | 85 / 108 |
| Rank in year | 40 / 3708 |
| Other M/X flares that day | 4 |
| M/X flares that month | 53 |
| Solar cycle | Cycle 25 |
Compared with the strongest flares of 2024
X8.9
X8.6
X7.0
X5.8
X4.4
X4.4
X3.9
X3.4
X3.3
X3.2
X2.9
X2.8
Other M/X flares that day
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 06:16 | 06:29 | 19 | M7.0 | – | – | |
| 15:40 | 15:56 | 22 | M6.1 | – | – | |
| 19:21 | 19:31 | 16 | M1.1 | – | – | |
| 20:29 | 20:46 | – | M9.7 | – | – |
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.
← M9.7 2024-03-28M9.4 2024-03-30 →
About this page
A X1.1 flare that began 2024-03-28 20:50 UTC; No. 40 of 3,708 C-class-or-larger flares in 2024.