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X1.1 solar flare on 1988-12-15
ClassX1.1NOAA report
Peak05:051988-12-15 UTC
Duration83 min
Peak flux1.1e-04W/m²
| Comparison | Value |
|---|---|
| Rank among X flares (1975 – Jun 2017) | 361 / 491 |
| Rank in year | 12 / 1845 |
| Other M/X flares that day | 2 |
| M/X flares that month | 49 |
| Solar cycle | Cycle 22 |
| Position on disk | N27E59 |
| Active region | AR 5278 (23 flares) |
Compared with the strongest flares of 1988
X5.6
X4.7
X3.2
X2.5
X2.4
X1.6
X1.4
X1.4
X1.3
X1.2
X1.1
X1.1
Other M/X flares that day
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 07:24 | 07:29 | 46 | M1.3 | – | – | |
| 21:23 | 21:31 | 43 | M1.5 | N20E14 | 5279 |
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.
← M6.5 1988-11-27X4.7 1988-12-16 →
About this page
A X1.1 flare that began 1988-12-15 04:46 UTC; No. 12 of 1,845 C-class-or-larger flares in 1988.