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 Oct 22 12:44:19

Three M-class flares were detected in the past 24 hours, all of them
produced by the Catania sunspot group 88 (NOAA AR 2192). The strongest
flare was the M8.7 flare peaking at 01:59 UT. Based on the still incomplete
SOHO/LASCO data and the absence of conspicuous eruptive signatures in the
SDO/AIA data, we conclude that there was no CME associated with this flare.
We expect flaring activity mostly on the M-level in this group, with a good
chance for an X-class flare. As the Catania sunspot group 88 approaches the
solar central meridian, a major eruption in this active region may lead to
a geoeffective CME and a proton event.The Earth is currently inside a slow
(around 460 km/s) solar wind flow with average (around 5 nT) interplanetary
magnetic field magnitude. The geomagnetic conditions are quiet and are
expected to remain so. 

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Daily estimated sunspot number

Most recent alerts

2014 Oct 21 1344 UTC
Catania sunspot group 88 (NOAA AR 2192) continues to grow and maintains [more]

2014 Sep 07 1337 UTC
The latest halo CME alert generated by the CACTus software package: 025|2014/09/06 [more]

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

Science Highlights

Oct 21, 2014: NOAA "Boom! Boom!" 2192

Oct 19, 2014: X1.1 flare on 19 October (NL-FR-EN)

Oct 08, 2014: An M7 surprise

Oct 01, 2014: Another farside blast

Sep 24, 2014: SBC or CIR?

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