Solar Flare WatchHome › Flare history › 2013
X1.0 solar flare on 2013-10-28
ClassX1.0NOAA report
Peak02:032013-10-28 UTC
Duration31 min
Peak flux1.0e-04W/m²
| Comparison | Value |
|---|---|
| Rank among X flares (1975 – Jun 2017) | 430 / 491 |
| Rank in year | 11 / 1467 |
| Other M/X flares that day | 6 |
| M/X flares that month | 37 |
| Solar cycle | Cycle 24 |
| Position on disk | N04W66 |
| Active region | AR 11875 (45 flares) |
Compared with the strongest flares of 2013
X3.3
X3.2
X2.8
X2.3
X2.1
X1.7
X1.7
X1.2
X1.1
X1.1
X1.0
X1.0
Other M/X flares that day
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 04:32 | 04:41 | 14 | M5.1 | S11W46 | 11877 | |
| 11:32 | 11:53 | 67 | M1.4 | N06W75 | 11875 | |
| 14:00 | 14:05 | 12 | M2.8 | N06W75 | 11875 | |
| 14:46 | 15:01 | 18 | M2.7 | S08E28 | 11882 | |
| 15:07 | 15:15 | 14 | M4.4 | S08E28 | 11882 | |
| 20:48 | 20:57 | 14 | M1.5 | – | – |
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.
← X2.1 2013-10-25M5.1 2013-10-28 →
About this page
A X1.0 flare that began 2013-10-28 01:41 UTC; No. 11 of 1,467 C-class-or-larger flares in 2013.