Viewing archive of Thursday, 13 September 2001

Sunspot numberNew regionsBackground fluxC
2232C1.79

Solar flares

Region Start Maximum End
- C3.7 00:34 00:37 00:41
- C7.0 01:21 01:25 01:28
9616 C6.6 02:00 02:07 02:17
9608 C4.6 03:51 03:54 03:59
9610 C2.4 13:03 13:06 13:07
9610 C2.4 13:10 13:12 13:14
9610 C7.0 15:57 16:02 16:04
- C5.8 19:48 19:51 19:54
- C2.4 23:03 23:09 23:15

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Current data suggest that it is not possible to see aurora now at middle latitudes

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Today's space weather

Auroral activity Minor Severe
High latitude 30% 30%
Middle latitude 5% 1%
Predicted Kp max 3
Solar activity
M-class solar flare 1%
X-class solar flare 1%
B1.2 B1.7 B1.4 B1.5 B3.2 B5.4 B8.4
Moon phase
New Moon

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Last X-flare:2017/09/10X8.2
Last M-flare:2017/09/09M1.1
Last geomagnetic storm:2017/09/18Kp5 (G1)
Number of spotless days in 2017:56
Last spotless day:2017/08/01

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*since 1994