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


During last 24 hours there were no C-class or even B-class flares reported.
The only sunspot group, observed on the visible side of the Sun, Catania
sunspot group 19 (NOAA AR 2743) is rotating behind the west solar limb. We
do not expect flaring activity of the B-class level or larger in the coming
There were no Earth directed CMEs and the solar protons remained at the
background level.

The solar wind speed is presently about 380 km/s and  the interplanetary
magnetic field magnitude is 3 nT. The geomagnetic conditions are quiet and
we expect them to stay so 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

2019 Jun 23 1642 UTC
END OF ALL QUIET ALERT ...................... The SIDC [more]

2019 Jun 09 1213 UTC
A small filament eruption was seen at approximately 00:00 UT yesterday [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]