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X10.0 solar flare on 1991-01-25
ClassX10.0NOAA report
Peak06:301991-01-25 UTC
Duration8 min
Peak flux1.0e-03W/m²
| Comparison | Value |
|---|---|
| Rank among X flares (1975 – Jun 2017) | 19 / 491 |
| Rank in year | 6 / 3297 |
| Other M/X flares that day | 4 |
| M/X flares that month | 36 |
| Solar cycle | Cycle 22 |
| Position on disk | S16E78 |
| Active region | AR 6471 (33 flares) |
Compared with the strongest flares of 1991
X12.0
X12.0
X12.0
X12.0
X12.0
X10.0
X10.0
X9.4
X7.1
X6.1
X5.5
X5.3
Other M/X flares that day
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 01:20 | 01:50 | 49 | M1.3 | – | – | |
| 02:28 | 02:56 | 50 | M1.6 | – | – | |
| 10:39 | 11:11 | 130 | M1.4 | S06E30 | 6466 | |
| 13:17 | 13:29 | 69 | M2.4 | S08E30 | 6466 |
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.
← M6.1 1991-01-21X1.9 1991-01-27 →
About this page
A X10.0 flare that began 1991-01-25 06:30 UTC; No. 6 of 3,297 C-class-or-larger flares in 1991.