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M9.1 solar flare on 2004-07-22

ClassM9.1NOAA report

Peak00:322004-07-22 UTC

Duration29 min

Peak flux9.1e-05W/m²

Comparison	Value
Rank in year	15 / 1046
Other M/X flares that day	2
M/X flares that month	39
Solar cycle	Cycle 23
Position on disk	N03E17
Active region	AR 10652 (81 flares)

Compared with the strongest flares of 2004

X3.6 07-16X3.6

X2.5 11-10X2.5

X2.0 11-07X2.0

X1.8 07-15X1.8

X1.8 08-18X1.8

X1.6 07-15X1.6

X1.3 07-16X1.3

X1.2 10-30X1.2

X1.1 02-26X1.1

X1.1 07-16X1.1

X1.0 07-17X1.0

X1.0 08-13X1.0

Other M/X flares that day

Date	Begin	Peak	Min	Class	Location	Region
	22:40	22:58	27	M1.6	N04E04	10652
	23:10	23:24	33	M1.2	–	–

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.

← M8.6 2004-07-20 M7.1 2004-07-25 →

About this page

A M9.1 flare that began 2004-07-22 00:14 UTC; No. 15 of 1,046 C-class-or-larger flares in 2004.