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X1.0 solar flare on 2023-06-20

ClassX1.0GOES-16 science data
Peak17:092023-06-20 UTC
Duration43 min
Peak flux1.0e-04W/m²
ComparisonValue
Rank among X flares (since Jun 2017)99 / 108
Rank in year12 / 3209
Other M/X flares that day4
M/X flares that month24
Solar cycleCycle 25

Compared with the strongest flares of 2023

Other M/X flares that day

DateBeginPeakMinClassLocationRegion
11:0911:13–M1.0––
11:1711:2517M1.8––
15:4415:4810M1.0––
16:2716:339M1.1––
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.

← M5.1 2023-05-20X1.0 2023-07-02 →

About this page

A X1.0 flare that began 2023-06-20 16:42 UTC; No. 12 of 3,209 C-class-or-larger flares in 2023.