Viewing archive of Tuesday, 21 March 2017
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Solar activity report
Geophysical report
Sunspot regions
Coronal holes
Kp values
Solar flares
Radiation storms
Solar wind (Speed, Density), Interplanetary Magnetic Field (IMF) (Bt, Bz)
G1 storm, Incoming CME?
We reached the minor G1 geomagnetic storm threshold today thanks to the arrival of the anticipated coronal hole solar wind stream. The solar wind speed fluctuates around 600km/s and the direction of the IMF (Bz) is variable but does occasionally tip southward down to -10nT. These stats are very decent so a minor G1 geomagnetic storm watch remains in effect for the remainder of this day and tomorrow, 22 March 2017. There is however more to report so keep on reading!
Latest news
Monday, 22 April 2024
Lot's of sunspots! Big chance for major flare activity?
Saturday, 23 March 2024
X1.1 solar flare with earth-directed CME
Wednesday, 20 March 2024
Sunspot region 3615, G1 watch
Latest forum messages
IMF - BT strength 6AR3654 1What are these long and thin eruptions? 6AR 3637, 3638, 3643 89Unproven theories 341
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Space weather facts
| Last X-flare | 2024/03/28 | X1.1 |
| Last M-flare | 2024/04/25 | M1.3 |
| Last geomagnetic storm | 2024/04/19 | Kp7 (G3) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2024 | 104.9 -19.8 |
| Last 30 days | 135.5 +27.6 |