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.


Solar activity remains to be low with only one isolate C-class flare
reported. The C1.0 flare (peaked at 07:48 UT today) originated from the
NOAA AR 2597 which presently has beta-gamma configuration of its
photospheric magnetic field. We expect solar activity to be low with
chances for an isolated C-class flare. No Earth directed CMEs were observed
in the last 24 hours.
The Earth is presently inside the solar wind with the speed of about 550
km/s. The interplanetary magnetic field magnitude is about 10 nT. Due to
long intervals of negative values of the Bz component of the magnetic field
(down to -10 nT) active to storm conditions prevailed during last 12 hours.

The present solar wind flow apparently constitutes the edge of the fast
stream associated with the large coronal hole in the northern hemisphere.
The fast solar wind from its equatorial extension is expected to arrive at
the Earth late today or early tomorrow. Up to moderate storm conditions can
be expected (K=6).

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 Sep 20 0951 UTC
A moderate geomagnetic storm (Kp = 5) is currently ongoing, while K Dourbes [more]

2016 Sep 06 1458 UTC
The Halo CME alert issued by CACTus on 2016 Sep 06 1344 UTC was false. [more]

2016 Jul 24 0516 UTC
A class M5.5 solar X-ray flare occurred on 2016/07/23 with peak time 05:31UT [more]

2016 Jul 05 2210 UTC
END OF ALL QUIET ALERT ...................... The SIDC [more]

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