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 2015 Jan 26 12:21:29

Only 2 minor C-class flares were observed during the last 24 hours. The
strongest was a C1.8 flare peaking at 06:27UT in steadily growing NOAA
2271. Some new flux emerged in the trailing portion of NOAA 2268. Both this
region and NOAA 2271 have some mixed magnetic polarities. The other regions
were quiet. No Earth-directed CMEs were observed. A 20 degree long filament
near the solar equator is at W30 and thus in a geoeffective position in
case of eruption.

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

A disturbance in the solar wind was recorded starting 25 January around
20:00UT. Bz fluctuated between +9 and -15 nT, wind speed increased slightly
and varied between 350 and 400 km/s. Elevated particle densities (20-40
particles per cm3) were observed between 05:00UT and 10:00UT. This may
herald the arrival of a CH HSS, but further data are required to confirm
this. Both Kp as K Dourbes recorded active geomagnetic conditions. A small
equatorial CH transited the CM on 25 January and may influence the
geomagnetic field late on 28 January.

The geomagnetic field is expected to be unsettled to active.

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

2015 Jan 13 0945 UTC
A partial halo CME originating from NOAA AR 2261 was seen appearing first [more]

2014 Dec 21 1044 UTC
A halo or partial-halo CME was detected with the following characteristics: [more]

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

Science Highlights

Jan 22, 2015: Lovely curves

Jan 14, 2015: The curious case of a strong storm

Jan 09, 2015: Fireworks in the sky!

Dec 30, 2014: The best of ... 2014!

Dec 12, 2014: Cruise the sun-earth system with STAFF

click here for all the news items

Good to know

ESWW12 - Call for Sessions

Six years of SOLAR/SOLSPEC mission on ISS

Mark the date: 11 June 2015 - STCE annual meeting

STCE seminars