Welcome to the Solar Influences Data Analysis Center (SIDC), which is the solar physics research department of the Royal Observatory of Belgium. The SIDC includes the World Data Center for the sunspot index and the ISES Regional Warning Center Brussels for space weather forecasting.
Jan 15, 2016 : Space Technology & Calibration Laboratories - at your service


Five sunspot groups were reported by NOAA today. The strongest flare of the
past 24 hours was the C1.3 flare peaking in the NOAA AR 2497 at 15:22 UT
yesterday. This group maintains beta-gamma configuration of its
photospheric magnetic field. We expect flaring activity on the C-level. 
The Earth is currently inside a slow (around 330 km/s) solar wind flow. The
interplanetary magnetic field (IMF) magnitude is slightly elevated (around
6 nT). The IMF north-south component Bz is consistently southward since
yesterday afternoon, but due to low solar wind speed the geomagnetic
conditions are on the quiet to unsettled level. We do not expect the
geomagnetic conditions to vary much, except if the solar wind speed will
increase, in which case active geomagnetic conditions may be 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

2016 Feb 06 0620 UTC
A partial halo CME was observed with first measurements in SOHO-LASCO/C2 [more]

2016 Jan 06 2254 UTC
A halo or partial-halo CME was detected with the following characteristics: [more]

2015 Oct 02 0048 UTC
A class M5.5 solar X-ray flare occurred on 2015/10/02 with peak time 00:13UT [more]

2015 Jun 02 0746 UTC
END OF ALL QUIET ALERT ...................... The SIDC [more]

Science Highlights

Feb 09, 2016: NOAA 2494's growth spurt

Feb 02, 2016: A filament erupts

Jan 27, 2016: Phoenix

Jan 19, 2016: The Polar Faculae are back!

Jan 12, 2016: The duration of solar flares

click here for all science highlights


Jan 15, 2016 : Space Technology & Calibration Laboratories - at your service

Dec 01, 2015 : Space Weather - Belgian wins an award

Nov 21, 2015 PV: Can the sun cause radar blackouts disrupting air traffic? - ESWW12

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