The SIDC is part of the Royal Observatory of Belgium and a partner in the Solar Terrestrial Center of Excellence (STCE).


No active regions visible on the Sun. No flares observed, nor expected. 
No Earth directed CMEs in the past 24 h. Solar protons have remained at
background levels over the past 24 hours.

The solar wind speed is at 485 km/s with interplanetary magnetic field
magnitude of 5 nT. Geomagnetic conditions reached K = 4 locally at Dourbes
and Kp = 5 overnight, due to long periods of negative Bz (reaching -12 nT).
This is due to the expected solar wind streams from small patchy negative
polarity equatorial coronal holes, probably mixed with a slow ICME
(possibly leaving the Sun on 12 February). More active periods can be
expected in the coming 48 h due to these high speed streams (including the
low latitudinal extension of the southern polar coronal hole).

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

2020 Feb 18 1346 UTC
END OF ALL QUIET ALERT ...................... The SIDC [more]

2019 Oct 25 0924 UTC
Geomagnetic conditions have reached moderate storm levels (NOAA Kp=6 for [more]

2018 May 04 1644 UTC
A halo or partial-halo CME was detected with the following characteristics: [more]

2017 Sep 10 1650 UTC
A class X8.9 solar X-ray flare occurred on 2017/09/10 with peak time 16:06UT [more]