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. The 15-degrees long filament in
former active region NOAA 2733 is stable and currently located near N10E15.
No earth-directed coronal mass ejections were observed over the last 24
hours. The greater than 10 MeV proton flux was at nominal values.

Solar activity is expected to remain at very low levels.

Solar wind speed showed a generally declining trend from 370 km/s at the
beginning of the period to 330 km/s at the end (DSCOVR). Bz ranged between
-3 and +3 nT. The interplanetary magnetic field was predominately directed
towards the Sun (negative sector). Geomagnetic activity was at quiet
Mostly quiet geomagnetic conditions are expected until the arrival of the
co-rotating interaction region and wind stream from the positive polarity
coronal hole later today or on 20 February. This may result in active
conditions, with a small chance on an isolated minor storming episode.

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 Feb 16 1225 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]