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


There were no flares on the visible solar disc of the Sun in the past 24
hours. The chance for a C flare in the next 24 hours is estimated at 10%.

No Earth-directed Coronal Mass Ejections (CMEs) were observed in available
coronagraphic imagery.

The greater than 10 MeV proton flux was at nominal levels in the past 24
hours, and is expected to stay at nominal levels in the next 24 hours.

In the past 24 hours, solar wind speed near Earth as registered by DSCOVR
varied between about 315 and 400 km/s, with current values around 340 km/s.
The Interplanetary Magnetic Field (IMF) was predominantly directed towards
the Sun and its magnitude varied between about 1 and 6 nT. Bz was never
below -5 nT. 

Quiet geomagnetic conditions (K Dourbes between 0 and 2; NOAA Kp between 0
and 1) were registered in the past 24 hours. Quiet to unsettled conditions
(K Dourbes < 4) are expected on November 16, 17 and 18.

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 Nov 13 1219 UTC
START OF ALL QUIET ALERT ........................ The SIDC - RWC Belgium [more]

2018 Nov 05 1320 UTC
Geomagnetic conditions have reached moderate storm levels on a planetary [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]