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


No active regions visible on the Sun. No flares observed, nor expected. 
No Earth directed CMEs in the past 24 h. Solar protons have remained at
background levels over the past 24 hours.

The solar wind speed is at 420 km/s with interplanetary magnetic field
magnitude of 4 nT. Quiet to unsettled conditions (K and Kp = 1 - 3) were
observed in the past 24 h. The solar wind from small patchy negative
polarity equatorial coronal holes can still affect the Earth (including the
low latitudinal extension of the southern polar coronal hole). Mostly quiet
to unsettled conditions expected for the next 48 h.

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

2020 Feb 20 1308 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]