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


Solar X-ray flux remained below B level throughout the period.
There are no active regions on disk and X-ray flux is expected to continue
to be below C level.

No earth directed CMEs have been recorded.

The proton flux levels were at background values and are expected to remain

Solar wind was close to nominal with Solar wind speed recovering from
around 400 km/s at the start of the period to a minimum of 330 km/s, while
presently around 360 km/s. Total magnetic field was in the 2-8.5 nT range
with Bz variable. The magnetic field phi angle was in the negative sector.
Solar wind may become somewhat enhanced again tomorrow under the possible
influence of the coronal hole that passed central meridian midnight January

Geomagnetic conditions were quiet to unsettled (local K Dourbes and NOAA Kp
Quiet to unsettled conditions are expected over the next days with a
possibility for an isolated active period.

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 Jan 11 1152 UTC
END OF ALL QUIET ALERT ...................... The SIDC [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]