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


Solar X-ray flux remained below B level.
With no regions on disk chances for C-class flaring are very low.

No Earth directed CMEs have been observed in coronagraph images.

Proton flux levels were at background values and are expected to remain

Solar wind speed declined over the period to be mainly in the 400-420 km/s
range with lately a further decline to 390 km/s. Total magnetic field saw
another period of slight enhancement reaching close to 10nT and now back at
around 6nT. Bz was mostly positive and the phi angle was in the negative
Slightly enhanced conditions are expected to continue over the next days
related to the Southern coronal hole regions.

Geomagnetic conditions were quiet to unsettled (both local K Dourbes and
NOAA Kp 0-3) and are expected to remain so over the next days.

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 19 1229 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]