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 Apr 24 12:18:37

Six low-level C-class flares were recorded over the last 24 hours, mostly
produced by active region NOAA 2035 which was also the source of the
strongest event (C5 peaking at 13:06UT). NOAA 2044 was the only other
region producing a flare (C3 peaking at 23:53UT). Imagery from the SOHO and
STEREO coronagraphs indicate that the associated CMEs are directed away
from the Earth, with any glancing blow not expected to affect the
geomagnetic field significantly. 

There's still a chance on a C-class flare.

Dourbes recorded a brief period of active geomagnetic conditions
(00:00-03:00UT; K=4; Kp=3). The source of this disturbance is uncertain,
with no obvious signature in the solar wind (ACE). For the remainder of the
period, quiet geomagnetic conditions were observed. Solar wind speed
oscillated between 400 and 450km/s, with Bz varying between -6 and +5nT. A
small equatorial coronal hole passed the central meridian last night. The
geomagnetic field may be impacted starting around 27 April.

Geomagnetic conditions are expected to be quiet.

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 Apr 20 1445 UTC
An interplanetary shock-like structure was detected this morning. ACE recorded [more]

2014 Apr 05 1842 UTC
The latest halo CME alert generated by the CACTus software package refers [more]

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


Latest News

Apr 23, 2014: The amazing M7 flare

Apr 16, 2014: Saturday Morning Fever...

Apr 09, 2014: Small groups, big flares

Apr 02, 2014: Homologous flares

Mar 26, 2014: Waiting for the big one

click here for all the news items



Good to know

7th Solar Information Processing Workshop - Registration and abstract submission is OPEN, August 17-22, 2014

ESWW11, 17-21 November, 2014 - Abstract submission is OPEN

STCE Workshop - Long Term Solar Changes and their effect on Earth, May 19, 2014

STCE Workshop - Physical processes in solar-terrestrial plasmas, May 22 - 23, 2014

STCE Workshop - Modelling antennas & calibration of radio instruments, June 6, 2014

STCE 2014 annual meeting, June 12, 2014