The aurora and solar activity archive

Searching for historical solar and auroral activity data? The archive is filled with data between the year 1996 and yesterday.

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March 2019

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A1.1

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A4.9

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C1.3

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B6.5

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A1.1

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B2.3

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C4.8

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Space weather facts

Last X-flare:2017/09/10X8.2
Last M-flare:2017/10/20M1.0
Last geomagnetic storm:2019/03/17Kp5 (G1)
Number of spotless days in 2019:53
Last spotless day:2019/03/17

This day in history*

Solar flares
12001M1.8
22013M1.6
32000M1.0
42001C9.8
52000C8.8
ApG
1199638G2
2199835G2
3200330G1
4199428G1
5201724G1
*since 1994

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