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 30

A partial halo CME was observed by LASCO/C2 (CACTUS) starting at 07:12UT
(30 July). It had a speed of about 600 km/s and an angular width of at
least 180 degrees. This CME was related to the filament eruption in the
northeast quadrant that took place earlier today (30 July, between
04:30-05:30UT). The LASCO imagery confirmed earlier findings from
STEREO-images that the bulk of this CME is directed to the north and away
from Earth. However, due to the angular width, a glancing blow from this
CME can not entirely be ruled out. Hence, this CME may affect the
geomagnetic environment around noon on 2 August. Currently, at most active
geomagnetic conditions are expected.

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2014 Jul 30 1836 UTC
A partial halo CME was observed by LASCO/C2 (CACTUS) starting at 07:12UT [more]

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