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X2.4 solar flare on 1991-03-29
ClassX2.4NOAA report
Peak06:481991-03-29 UTC
Duration52 min
Peak flux2.4e-04W/m²
| Comparison | Value |
|---|---|
| Rank among X flares (1975 – Jun 2017) | 160 / 491 |
| Rank in year | 20 / 3297 |
| Other M/X flares that day | 1 |
| M/X flares that month | 123 |
| Solar cycle | Cycle 22 |
| Position on disk | S28W60 |
| Active region | AR 6555 (79 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 |
|---|---|---|---|---|---|---|
| 10:37 | 10:47 | 29 | M1.1 | – | – |
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.
← X4.7 1991-03-26X1.0 1991-03-31 →
About this page
A X2.4 flare that began 1991-03-29 06:42 UTC; No. 20 of 3,297 C-class-or-larger flares in 1991.