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X2.3 solar flare on 1984-02-17
ClassX2.3NOAA report
Peak23:001984-02-17 UTC
Duration96 min
Peak flux2.3e-04W/m²
| Comparison | Value |
|---|---|
| Rank among X flares (1975 – Jun 2017) | 165 / 491 |
| Rank in year | 5 / 1262 |
| Other M/X flares that day | 1 |
| M/X flares that month | 27 |
| Solar cycle | Cycle 21 |
| Position on disk | N16E82 |
| Active region | AR 4421 (56 flares) |
Compared with the strongest flares of 1984
X13.0
X10.1
X4.1
X2.7
X2.3
X1.7
X1.0
M7.5
M7.2
M7.1
M6.3
M5.7
Other M/X flares that day
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 11:42 | 11:57 | 26 | M1.4 | – | – |
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 1983-08-13M5.7 1984-04-20 →
About this page
A X2.3 flare that began 1984-02-17 22:26 UTC; No. 5 of 1,262 C-class-or-larger flares in 1984.