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X4.1 solar flare on 1983-02-03

ClassX4.1NOAA report
Peak06:191983-02-03 UTC
Duration179 min
Peak flux4.1e-04W/m²
ComparisonValue
Rank among X flares (1975 – Jun 2017)65 / 491
Rank in year1 / 2060
Other M/X flares that day0
M/X flares that month5
Solar cycleCycle 21
Position on diskS19W08
Active regionAR 4077 (32 flares)

Compared with the strongest flares of 1983

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.

← M7.1 1982-12-30M5.2 1983-03-17 →

About this page

A X4.1 flare that began 1983-02-03 05:43 UTC; No. 1 of 2,060 C-class-or-larger flares in 1983.