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X1.2 solar flare on 1989-03-11
ClassX1.2NOAA report
Peak15:381989-03-11 UTC
Duration26 min
Peak flux1.2e-04W/m²
| Comparison | Value |
|---|---|
| Rank among X flares (1975 – Jun 2017) | 327 / 491 |
| Rank in year | 43 / 2608 |
| Other M/X flares that day | 8 |
| M/X flares that month | 100 |
| Solar cycle | Cycle 22 |
| Position on disk | N28E13 |
| Active region | AR 5395 (107 flares) |
Compared with the strongest flares of 1989
X20.0
X15.0
X13.0
X9.8
X6.5
X5.7
X4.5
X4.1
X4.0
X4.0
X3.9
X3.6
Other M/X flares that day
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 01:54 | 01:55 | 7 | M1.6 | N28E17 | 5395 | |
| 03:30 | 03:43 | 36 | M2.0 | N27E18 | 5395 | |
| 05:14 | 05:31 | 61 | M2.3 | N31E21 | 5395 | |
| 06:42 | 06:42 | 8 | M1.2 | N30E19 | 5395 | |
| 08:29 | 09:05 | 75 | M9.7 | N29E16 | 5395 | |
| 14:02 | 14:05 | 34 | M1.0 | N30E11 | 5395 | |
| 18:27 | 18:37 | 29 | M1.2 | N31E10 | 5395 | |
| 19:33 | 19:40 | 43 | X1.3 | N27E10 | 5395 |
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 1989-03-11X1.3 1989-03-11 →
About this page
A X1.2 flare that began 1989-03-11 15:35 UTC; No. 43 of 2,608 C-class-or-larger flares in 1989.