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.
Jul 01, 2015: Switching to the new Sunspot Number


Solar activity during the past period was low. No significant flares or
Earth-directed CMEs were observed. Flaring activity is expected to remain
low, with an increasing chance for C-class flares originating from a few
regions that are currently rounding the East limb.

The solar wind speed has declined from 600 to 500 km/s and the magnitude
field magnitude was near 5 nT. Geomagnetic conditions were quiet to
unsettled and are expected to remain so.

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

2015 Aug 03 1158 UTC
A CME was observed in SOHO/LASCO C2, with first measurement at 21:48 UT [more]

2015 Jul 10 2249 UTC
A halo or partial-halo CME was detected with the following characteristics: [more]

2015 Jun 25 0906 UTC
A class M7.9 solar X-ray flare occurred on 2015/06/25 with peak time 08:16UT [more]

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

Science Highlights

Jul 29, 2015: STEREO-A's reawakening

Jul 23, 2015: A complex filament eruption

Jul 16, 2015: Coincidence

Jul 08, 2015: The solar cycle's new clothes

Jun 24, 2015: First proton event of 2015

click here for all science highlights


Jul 01, 2015: Switching to the new Sunspot Number

May 06, 2015: Extreme Space Weather: flares (NL-FR-EN)

Mar 20, 2015: Solar Eclipse

Click here for all the press releases

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