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 Aug 29
13:12:04

A halo CME was observed in SOHO/LASCO C2 and STEREO B/COR2 imagery, with
first measurements at 17:36 UT and 17:54 UT on August 28 respectively. The
apparent width is estimated to be 210 degrees. This CME is related to a
backsided event and as such is not Earth directed.

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
EISN

Most recent alerts

2014 Aug 29 1853 UTC
The latest halo CME alert, with first measurement of the CME on August [more]

2014 Aug 29 1313 UTC
A halo CME was observed in SOHO/LASCO C2 and STEREO B/COR2 imagery, with [more]

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


Latest News

Aug 27, 2014: Small sunspot, big flare

Aug 13, 2014: Far-side blast targets STEREO-A

Aug 06, 2014: A filament always rings twice

Jul 31, 2014: Tour de France

Jul 07, 2014: Sunspot Summer Festival

click here for all the news items



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