Welcome to the Solar Influences Data Analysis Center (SIDC), which is the solar physics research department of the Royal Observatory of Belgium. The SIDC includes the World Data Center for the sunspot index and the ISES Regional Warning Center Brussels for space weather forecasting.


Over the past 24 hours solar activity has been quiet. No significant flares
have been recorded. Active Region (AR) 2696 (Mcintosh class:Cro; Mag.
type:Beta) is the only region on the disk, but has been quiet. There are no
other significant ARs on the solar disk. No Earth directed Coronal Mass
Ejections (CMEs) have been detected. Solar activity is expected to remain
low over the next 24 hours with a small probability of C-class flares.
The solar wind speed has decreased from around 440 to 350 km/s over the
past 24 hours. The total magnetic field strength has remained around 5 nT.
The Bz component fluctuated around 0 nT, ranging between -4 and +4 nT.
Geomagnetic conditions ranged between Kp index 0-1 (NOAA) and local K index
0-2 (Dourbes) over the past 24 hours. Geomagnetic conditions are expected
to be quiet.

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 Jan 08 0857 UTC
The in situ observations (from DSCOVR satellite) indicate arrival of the [more]

2018 Jan 02 1231 UTC
START OF ALL QUIET ALERT ........................ The SIDC - RWC Belgium [more]

2017 Sep 17 1959 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]

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