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 throughout the period.
The Solar disk is spotless and X-ray flux is expected to continue to be
below C level.

No earth directed CMEs have been recorded.

The proton flux levels were at background values and are expected to remain

Solar wind conditions are nominal. Solar wind speed decreased further from
around 390 km/s to around 340-350 km/s. Total magnetic field was below 4nT.
The magnetic field phi angle was predominantly in the negative sector.
Nominal Solar wind conditions are expected over the next days. The Solar
wind sector change preceding the coronal hole that is now transiting the
central meridian is not expected before January 22 and further associated
Solar wind enhancements are expected to set in January 23/24.

Geomagnetic conditions were mostly quiet (local K Dourbes 0-2) with an
isolated unsettled period observed in NOAA Kp (0-3).
Quiet geomagnetic conditions are expected over the next days, but will
later increase to unsettled (from January 22) and thereafter (January
23/24) active periods.

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 Jan 16 1237 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]