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M5.9 solar flare on 1988-03-15

ClassM5.9NOAA report

Peak11:541988-03-15 UTC

Duration21 min

Peak flux5.9e-05W/m²

Comparison	Value
Rank in year	29 / 1845
Other M/X flares that day	5
M/X flares that month	21
Solar cycle	Cycle 22
Position on disk	S23E47
Active region	AR 4964 (77 flares)

Compared with the strongest flares of 1988

X5.6 06-24X5.6

X4.7 12-16X4.7

X3.2 10-03X3.2

X2.5 10-12X2.5

X2.4 06-24X2.4

X1.6 06-23X1.6

X1.4 01-02X1.4

X1.4 12-30X1.4

X1.3 06-24X1.3

X1.2 04-14X1.2

X1.1 10-03X1.1

X1.1 12-15X1.1

Other M/X flares that day

Begin	Peak	Min	Class	Location	Region
08:24	08:26	22	M2.5	S22E45	4964
09:21	09:32	20	M3.3	S23E46	4964
16:07	16:17	93	M6.5	S24E41	4964
20:39	20:45	26	M4.4	S22E34	4964
22:16	22:19	27	M3.7	S24E34	4964

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.

← X1.4 1988-01-02 M6.5 1988-03-15 →

About this page

A M5.9 flare that began 1988-03-15 11:45 UTC; No. 29 of 1,845 C-class-or-larger flares in 1988.