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Solar flares — Sep 21, 2001

The strongest solar flare in the day

Flare of C7.7 level (normal) — in 08:02

Solar activity index

Value for Sep 21, 2001 24:00 (end on the day). The maximum value is 10.0

Solar activity index

Solar flares in 2 days

Chart of solar activity from Sep 20, 2001 to Sep 21, 2001

Time zone — UTC+01 (London) - summer time

Solar flares in 2 days
This chart in PNG format — high resolution API data: JSON or TXT

List of solar flares for Sep 21, 2001

Total number of flares of class C and higher6 flares

C type — 6 | M type — 0 | X type — 0

  start maximum end region
C3.8
21:08 21:12 21:18 9631
C3.6
17:42 17:45 17:47 9632
C7.7
07:44 08:02 08:07 9631
C3.1
07:36 07:40 07:42 9632
C4.1
05:48 05:55 06:02 9620
C2.5
02:17 02:29 02:32 9620