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


Solar activity was at very low levels. No significant flares have been
recorded. A small (beta) region has emerged close to the equator in the
east of the solar disk on Jan 24 (as yet unnumbered by NOAA). No Earth
directed Coronal Mass Ejections (CMEs) have been detected. The greater than
10 MeV proton flux was at nominal values. Solar activity is expected to
remain at very low levels.

The solar wind speed ranged between 310 and 360 km/s (ACE). The total
magnetic field remained stable with values around 3 nT. Bz varied between
-3 and +2 nT. The interplanetary magnetic field (phi angle) was
predominantly directed towards the Sun (negative sector). 

Geomagnetic activity was quiet, with the Kp index (NOAA) and the local k
index (Dourbes) recording values of between 0 and 1. Quiet conditions are
expected on Jan 24-26.

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 Jan 12 1232 UTC
END OF ALL QUIET ALERT ...................... The SIDC [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]