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.

FAST WARNING 'PRESTO' MESSAGE  from the SIDC (RWC-Belgium) 2014 Jul 10
13:04:14

Two partial halo CMEs were observed in coronagraphic imagery.
The first CME (first measurement in SOHO/LASCO C2 at 16:36 UT on July 9)
was associated with a filament eruption occurring near S00E15 and is
propagating east from the Sun-Earth line with a  projected plane of the
sky
speed of 520 km/s (CACTus estimation).  

The second CME (first measurement in SOHO/LASCO C2 at 7:12 UT on July 10)
was associated with a prominence
eruption occurring near Catania region 3 (NOAA AR 2104) and is propagating
west from the
Sun-Earth line with a  projected plane of the sky speed of 760 km/s
(CACTus
estimation).      For the first CME, the arrival of a glancing blow from
the CME-driven shock wave is expected on July 13 near 0 UT. The  second
CME
has less chances to arrive at Earth, but minor signatures of arrival might
still be possible on the UT morning of July 13.  

Latest SWAP image

SWAP latest image

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USET latest Halpha image

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Daily estimated sunspot number
EISN

Most recent alerts

2014 Jul 10 1304 UTC
Two partial halo CMEs were observed in coronagraphic imagery. The first [more]

2014 Jun 15 1446 UTC
The latest halo CME alert issued (on 2014 Jun 14, 22:54 UT), by the CACTUS [more]

2013 Sep 25 1242 UTC
END OF ALL QUIET ALERT ...................... The SIDC [more]


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Jun 13, 2014: A snaky filament lifts off

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