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 Jul 23 12:28:29

Solar activity has remained quiet with background X-ray flux close to the
B2 level and an occasional moderate B flare (A B5.7 flare from Catania
group 22 / NOAA AR 2121 peaking at 5:42 UT and a B5.5 flare from Catania
group 20 / NOAA AR 2019 peaking at 7:42 UT).
Without significant further development of the active regions presently on
disc, quiet solar conditions are expected to continue, and the all quiet
alert is maintained.
A partial halo CME with an angular width of close to 180 degrees
(underestimated by Cactus as 118 degrees) was visible in SOHO/LASCO C2 from
18:00UT July 22 onwards. The mass was expelled in north-western direction
from the Sun Earth line. Coronal imagery (PROBA2/SWAP, SDO/AIA, as well as
STEREO A EUVI) shows the event to originate from at or just around the
western limb at a latitude of around 30 degrees North.
Consequently no influence on Earth is expected.Solar wind speed has dropped
gradually from its slightly enhanced values at the start of the reporting
period (around 350 km/s) to just over 300 km/s presently. The total
magnetic field was within the 3-5nT range with variable Bz within the
+/-4nT range. Geomagnetic conditions were mostly quiet (NOAA Kp 1-2) with a
short period of local unsettled conditions just after UT noon July 22 (K
Dourbes 3 returning to 2 afterwards and 0-1 presently).
Nominal solar wind conditions and associated quiet geomagnetic conditions
are expected to continue over the next days.

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 Jul 23 1130 UTC
A partial halo CME with an angular width of close to 180 degrees (underestimated [more]

2014 Jul 16 1332 UTC
START OF ALL QUIET ALERT ........................ The SIDC - RWC Belgium [more]

2014 Jul 11 2040 UTC
The latest halo CME alert, referring to start on July 10 at 15:12 UT, generated [more]


Latest News

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