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 Sep 30 12:20:03

There are currently 10 sunspot groups on the solar disk, with two active
regions approaching the east limb. However, only NOAA 2173 is producing
low-level C-class flaring, the strongest being a C3.3 flare peaking at
21:32UT. NOAA 2175 and NOAA 2177 have some mixed magnetic polarities, but
have remained quiet. No Earth-directed CMEs have been observed. The x-ray
background flux is already 5 consecutive days above the C1-level. Two
20-degrees long filaments visible in the western solar hemisphere have
remained quiet.

C-class flaring is expected, with a reasonable chance on an isolated
M-class flare.

Solar wind speed varied mostly between 340 and 380 km/s, with Bz
fluctuating between -7 and +5 nT. Quiet to unsettled geomagnetic conditions
were observed, with Kp having some active periods. Geomagnetic conditions
are expected to be quiet to unsettled, with locally an active period

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

Most recent alerts

2014 Sep 26 1138 UTC
The partial halo CME with first detection in SOHO/LASCO C2 at 4:28 (and [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

Sep 24, 2014: SBC or CIR?

Sep 17, 2014: Number 35

Sep 11, 2014: High solar activity! (NL-FR-EN) - UPDATED

Sep 10, 2014: High solar activity! (NL-FR-EN)

Sep 10, 2014: Backside Blast

click here for all the news items

Good to know

Open Door 2014: 11-12 October (NL - FR - EN)

Zooniverse for online sunspotting

ESWW11 - early bird registration, deadline October 1

STCE seminars