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 Jul 29 12:13:58

The strongest flare of the last 24 hours took place in NOAA 2125. The C2
flare peaked at 14:10UT and was associated to a non-Earth directed CME. The
4 other C-class flares were all minor C1 events taking place in the
trailing portion of growing active region NOAA 2126.The other 8 sunspot
groups were quiet, including NOAA 2127 which has some mixed magnetic

Further C-class flaring is expected, in particular from NOAA 2126 and

After yesterday's sector boundary crossing, solar wind speed decreased from
450 to 350 km/s. Initially, Bz varied between +6 and -6 nT, but its
amplitude gradually decreased to 2 near the end of the reporting period.
Geomagnetic conditions evolved from unsettled to quiet.

Quiet geomagnetic conditions are expected, with locally an unsettled period

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

2014 Jul 24 1227 UTC
END OF ALL QUIET ALERT ...................... The SIDC [more]

2014 Jul 23 1130 UTC
A partial halo CME with an angular width of close to 180 degrees (underestimated [more]

2014 Jul 11 2040 UTC
The latest halo CME alert, referring to start on July 10 at 15:12 UT, generated [more]

Latest News

Jul 07, 2014: Sunspot Summer Festival

Jul 02, 2014: Backside eruption

Jun 25, 2014: Up, up and away!...

Jun 18, 2014: The 3 X-class flares from NOAA 2087

Jun 13, 2014: A snaky filament lifts off

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