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 Nov 20 11:53:18

Three C-class flares were reported during the past 24 hours. The two weaker
ones (C2.4 and C2.6 yesterday evening) were produced by the NOAA AR 2209.
The strongest flare (C7.6 peaking at 06:41 UT today) was produced by a
large unnumbered sunspot group that just appeared from behind the east
limb. We expect this group to produce more C-class flares, possibly with an
isolated M-class flare. NOAA AR 2209 started to decay in area and in number
of sunspots, although it still maintains the beta-gamma-delta configuration
of its photospheric magnetic field. We expect C-class flares from this
region, with an M-class flare possible but unlikely. The Earth is currently
inside a slow (around 400 km/s) solar wind flow with slightly elevated
interplanetary magnetic field (IMF) magnitude (6-7 nT). Due to this slight
elevation of the IMF magnitude, one interval of K = 4 was reported by
IZMIRAN and NOAA in the past 24 hours. The K-index measurements by Dourbes
remained at the quiet to unsettled levels (K < 4). We expect quiet to
unsettled (K < 4) geomagnetic conditions to persist, possibly with isolated
intervals of active (K = 4) conditions.

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Daily estimated sunspot number

Most recent alerts

2014 Nov 12 1241 UTC
The partial halo CME, first seen in the SOHO LASCO C2 field of view at [more]

2014 Nov 08 0749 UTC
A halo or partial-halo CME was detected with the following characteristics: [more]

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

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