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Solar flares — April 12, 2002

April 12, 2002

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Solar flares on April 12, 2002

The most powerful solar flare in 24 hours

M4.0 (strong) flare - April 12 at 11:32 PM

Solar activity index

Value as of the end of the day on April 12, 2002

Solar activity index

Solar X-ray emission over the past 2 days

Chart of solar X-ray emission (1-8 Å) from April 11, 2002 to April 12, 2002

Time zone — UTC+05:30 (Thane)

Solar flares
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List of solar flares for April 12, 2002

The total number of solar flares of class C and higher — 11 flares

C class — 9 | M class — 2 | X class — 0

Class begin max end region
M4.0 23:01 23:32 23:47 9901
C7.7 21:27 21:33 21:42 9907
M1.4 18:35 18:40 18:44
C3.0 14:09 14:12 14:14 9906
C3.4 10:18 10:42 10:49 9899
C5.0 08:34 08:39 08:44 9907
C1.9 08:20 08:23 08:26
C1.8 07:12 07:16 07:23 9906
C1.5 06:47 06:50 06:53
C1.6 04:27 04:30 04:36 9893
C7.2 00:03 00:08 00:13