Home › Flare history › 2003

M9.6 solar flare on 2003-11-20

ClassM9.6NOAA report

Peak07:472003-11-20 UTC

Duration18 min

Peak flux9.6e-05W/m²

Comparison	Value
Rank in year	22 / 1496
Other M/X flares that day	2
M/X flares that month	28
Solar cycle	Cycle 23
Position on disk	N01W08
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
	23:42	23:53	16	M5.8	N02W17	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.

← M5.3 2003-11-05 M5.8 2003-11-20 →

About this page

A M9.6 flare that began 2003-11-20 07:35 UTC; No. 22 of 1,496 C-class-or-larger flares in 2003.