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 Sun remains spotless and no
significant flares have been recorded.  No Earth directed coronal mass
ejections (CMEs) were observed over the last 24 hours in the available
coronagraph imagery. The greater than 10 MeV proton flux was at nominal
values. Solar activity is expected to remain at very low levels. 

The solar wind fluctuated between 300 and 345 km/s (DSCOVR). Bz varied
between -4 and +5 nT. The interplanetary magnetic field was predominantly
directed away from the Sun (positive sector). Quiet to unsettled
geomagnetic conditions were observed, with the Kp index ranging between 0-1
(NOAA) and the local K index (Dourbes) ranging between 0-3 over the past 24

Quiet to unsettled geomagnetic conditions are expected due to the arrival
of the solar wind streams associated with a series of fragmented negative
polarity coronal holes. Isolated active periods are also possible.

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 Jun 09 1213 UTC
A small filament eruption was seen at approximately 00:00 UT yesterday [more]

2019 Jun 09 1206 UTC
END OF ALL QUIET ALERT ...................... The SIDC [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]