Solar Flare WatchHome › Flare history › 1990
M7.3 solar flare on 1990-04-03
ClassM7.3NOAA report
Peak08:421990-04-03 UTC
Duration89 min
Peak flux7.3e-05W/m²
| Comparison | Value |
|---|---|
| Rank in year | 23 / 2551 |
| Other M/X flares that day | 2 |
| M/X flares that month | 24 |
| Solar cycle | Cycle 22 |
Compared with the strongest flares of 1990
X9.3
X5.5
X3.6
X3.4
X3.0
X2.4
X2.2
X1.9
X1.8
X1.7
X1.5
X1.4
Other M/X flares that day
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.
← X1.5 1990-03-19X1.0 1990-04-03 →
About this page
A M7.3 flare that began 1990-04-03 08:16 UTC; No. 23 of 2,551 C-class-or-larger flares in 1990.