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M5.8 solar flare on 2003-11-20

ClassM5.8NOAA report

Peak23:532003-11-20 UTC

Duration16 min

Peak flux5.8e-05W/m²

Comparison	Value
Rank in year	31 / 1496
Other M/X flares that day	2
M/X flares that month	28
Solar cycle	Cycle 23
Position on disk	N02W17
Active region	AR 10501 (27 flares)

Compared with the strongest flares of 2003

X28.0 11-04X28.0

X17.2 10-28X17.2

X10.0 10-29X10.0

X8.3 11-02X8.3

X5.4 10-23X5.4

X3.9 11-03X3.9

X3.6 05-28X3.6

X2.7 11-03X2.7

X1.7 06-09X1.7

X1.6 06-11X1.6

X1.5 03-17X1.5

X1.5 03-18X1.5

Other M/X flares that day

Date	Begin	Peak	Min	Class	Location	Region
	01:47	02:12	41	M1.4	N03W08	10501
	07:35	07:47	18	M9.6	N01W08	10501

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.

← M9.6 2003-11-20 M6.9 2004-01-05 →

About this page

A M5.8 flare that began 2003-11-20 23:42 UTC; No. 31 of 1,496 C-class-or-larger flares in 2003.