The SIDC is part of the Royal Observatory of Belgium and a partner in the Solar Terrestrial Center of Excellence (STCE).


Only one sunspot group is presently observed on the visible side of the
solar disc. The newly emerged, Catania sunspot group 33 was the source of
several A class flares during last 24 hours. We expect a low level of
flaring activity to persist in the coming hours. 
During last 24 hours there were no Earth directed CMEs and the solar
protons remained at the background level.

The solar wind speed is presently about 315 km/s, and the interplanetary
magnetic field magnitude is 4 nT. One interval of the unsettled geomagnetic
conditions was reported by local station at Dourbes (K=3), at about 09 UT
today. The geomagnetic conditions are presently quiet and we expect quiet
geomagnetic conditions in the coming hours.

Latest SWAP image

SWAP latest image

Latest USET H-alpha image
USET latest Halpha image

Latest LYRA curve

Latest LYRA Curves

Latest Callisto Observations

Latest HUMAIN Callisto qkl

Daily estimated sunspot number

Most recent alerts

2020 Jun 30 0725 UTC
The in situ observations show the arrival of the shock wave, this morning [more]

2020 Jun 30 0712 UTC
END OF ALL QUIET ALERT ...................... The SIDC [more]

2018 May 04 1644 UTC
A halo or partial-halo CME was detected with the following characteristics: [more]

2017 Sep 10 1650 UTC
A class X8.9 solar X-ray flare occurred on 2017/09/10 with peak time 16:06UT [more]