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


There is one active regions visible on the solar disk (NOAA 2725), with
alpha magnetic field configuration and one sunspot. No C-class flares in
past 24 h. Solar activity is expected to remain at low levels.
No Earth directed Coronal Mass Ejections (CMEs) have been detected. Solar
protons have remained at background levels over the past 24 hours.

The solar wind speed is at 520 km/s with interplanetary magnetic fields of
4 nT. The Earth is under the influence of a high speed solar wind stream.
Geomagnetic conditions have been quiet to unsettled, with an active period
at Dourbes (K = 4) on October 15 at 21:00 UT. More quiet to unsettled
conditions expected for the next 48 h (active periods remain possible).

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

2018 Oct 16 0922 UTC
START OF ALL QUIET ALERT ........................ The SIDC - RWC Belgium [more]

2018 Oct 07 1127 UTC
The compression region in front of the fast solar wind stream expected [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]