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


The visible side of the solar disc is presently spotless and accordingly
there were no C-class, or even B-class flares for several days. We expect
such a low 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.	

Presently the solar wind speed is about 350 km/s and the interplanetary
magnetic field magnitude is 3 nT. 
The geomagnetic conditions are quiet with one interval of unsettled
conditions reported early this morning (both Dourbes and NOAA reported K
and Kp values 3). We are expecting quiet geomagnetic conditions with
possibly isolated intervals of unsettled conditions due to arrival of the
solar wind originating from the patchy negative polarity coronal hole that
reached central meridian on December 05.

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 Nov 22 1147 UTC
START OF ALL QUIET ALERT ........................ The SIDC - RWC Belgium [more]

2019 Oct 25 0924 UTC
Geomagnetic conditions have reached moderate storm levels (NOAA Kp=6 for [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]