Viewing archive of Tuesday, 21 April 2015

Sunspot numberNew regionsBackground fluxCM
1532B9.047

Solar flares

Region Start Maximum End
2322 C1.2 03:49 03:54 04:07
2324 C1.1 05:36 05:42 05:52
2322 M1.0 07:08 07:21 07:27
2322 C2.4 09:55 10:02 10:14
2333 M2.2 10:17 10:40 10:59
2322 M2.2 11:49 11:57 12:02
2322 M4.0 15:24 15:45 15:51
2322 M2.1 16:55 17:00 17:09
2325 C5.0 20:50 20:59 21:13
2322 M1.8 21:39 21:45 21:55
2325 M1.2 21:58 22:01 22:04

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Current data suggest that it is not possible to see aurora now at middle latitudes
The solar wind speed is currently moderately high (505.9 km/sec.)

Latest news

Today's space weather

Auroral activity Minor Severe
High latitude 10% 5%
Middle latitude 1% 1%
Predicted Kp max 2
Solar activity
M-class solar flare 1%
X-class solar flare 1%
Moon phase
Waxing Crescent

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Space weather facts

Last X-flare:2015/05/05X2.7
Last M-flare:2017/04/03M5.8
Last geomagnetic storm:2017/06/16Kp5 (G1)
Number of spotless days in 2017:42
Current stretch spotless days:2

This day in history*

Solar flares
11998M1.0
21999M1.0
32000C9.3
42003C3.9
52004C3.6
ApG
1200331G1
2199925G1
3200018
4199717G1
5199414
*since 1994