At least three large CME clouds were observed during last 24 hours but all of them were at far side so there is no danger for Earth, they are heading away from our planet. Old Sunspot 1564 was probably source of the flares. STEREO Behind COR2 recorded bright flash with Full Halo CME around 15:00 UTC that indicate it could be strong X-class solar flare.
Video below shows a solar prominence off the northwest limb that hurled a Coronal Mass Ejection (CME) into space, away from Earth on September 20.
The geomagnetic field was at predominately quiet to unsettled levels with a period of active conditions observed at the end of September 19. The geomagnetic field is expected to be at quiet to unsettled levels with isolated active intervals at September 21-22 as a coronal hole high-speed stream (CH HSS) remains geoeffective.
The solar wind is currently at elevated levels and this may lead to increased geomagnetic activity at very high latitudes.
Solar activity is expected to be at low levels with a slight chance for M-class activity for the next three days. NOAA/SWPC estimates 15% chances for M-class events.
speed: 555.9 km/sec
density: 0.8 protons/cm3
The Radio Sun
10.7 cm flux: 110 sfu
Interplanetary Mag. Field
Btotal: 3.0 nT
Bz: 1.4 nT north
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