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


The solar activity has been quiet over the past 24 hours, with the X-ray
flux remaining below B-class level. The probability of C-class flares
occurring remains very low and quiet conditions are expected to continue
over the next 24 hours.

No Earth directed Coronal Mass Ejections (CMEs) have been detected. The
greater than 10MeV proton flux remained at background levels over the past
24 hours and is expected to remain so.

Over the last 24 hours the solar wind began to slowly decrease from 530 to
450 km/s. The total magnetic field strength fluctuated around 4.0 nT, while
the Bz component fluctuated between -3.0 and 3.5 nT. The slightly enhanced
solar wind conditions are expected to continue over the next 24 hours
before gradually decreasing as the Earth leaves the influence of the solar
wind stream associated with the extended southern polar coronal hole, which
first crossed the central meridian on the 10th of February.

The geomagnetic conditions were quiet to unsettled over the last 24 hours,
with the Kp (NOAA) and the local K (Dourbes) indices ranging between 0-3.
The geomagnetic conditions are expected to continue to be unsettled as the
enhanced solar wind associated with the extended southern polar coronal
hole continues to influence the Earth over the coming hours. 

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 12 1227 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]