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.

INFO FROM SIDC - RWC BELGIUM 2014 Oct 25 12:50:27

The strongest flare observed on the Sun during the past 24 hours was the
X3.1 flare peaking at 21:41 UT yesterday in the Catania sunspot group 88
(NOAA AR 2192). SOHO/LASCO data demonstrate that the flare was accompanied
only with a very weak and narrow CME. No geomagnetic consequences are
expected. Despite the decrease in the area of the Catania sunspot group 88,
it maintains the beta-gamma-delta configuration of its photospheric
magnetic field, so we expect the flaring activity up to X-level from this
sunspot group. As the Catania sunspot group 88 is currently situated close
to the solar central meridian, a major eruption in this active region may
lead to a geoeffective CME and a proton event. A long filament in the
northern hemisphere is now crossing the solar central meridian. Its
possible eruption may lead to an Earth-directed CME.The Earth is currently
inside a slow (around 390 km/s) solar wind flow with average (around 5 nT)
interplanetary magnetic field magnitude. The geomagnetic conditions are
quiet and are expected to remain
so.

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Daily estimated sunspot number
EISN

Most recent alerts

2014 Oct 24 2159 UTC
Catania sunspot group 88 (NOAA AR 2192) produced an X3.1 flare peaking [more]

2014 Sep 07 1337 UTC
The latest halo CME alert generated by the CACTus software package: 025|2014/09/06 [more]

2014 Aug 08 1211 UTC
END OF ALL QUIET ALERT ...................... The SIDC [more]


Science Highlights

Oct 24, 2014: X3.1 flare on 24 October (NL-FR-EN)

Oct 22, 2014: X1.6 flare on 22 October (NL-FR-EN)- UPDATED

Oct 21, 2014: NOAA "Boom! Boom!" 2192

Oct 19, 2014: X1.1 flare on 19 October (NL-FR-EN)

Oct 08, 2014: An M7 surprise

click here for all the news items

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