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X2.8 solar flare on 2001-12-11
ClassX2.8NOAA report
Peak08:082001-12-11 UTC
Duration16 min
Peak flux2.8e-04W/m²
| Comparison | Value |
|---|---|
| Rank among X flares (1975 – Jun 2017) | 124 / 491 |
| Rank in year | 7 / 2429 |
| Other M/X flares that day | 1 |
| M/X flares that month | 50 |
| Solar cycle | Cycle 23 |
| Position on disk | N16E41 |
| Active region | AR 9733 (26 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 |
|---|---|---|---|---|---|---|
| 14:42 | 14:51 | 15 | M1.3 | S26W35 | 9727 |
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.
← M5.5 2001-11-29M5.6 2001-12-12 →
About this page
A X2.8 flare that began 2001-12-11 07:58 UTC; No. 7 of 2,429 C-class-or-larger flares in 2001.