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

INFO FROM SIDC - RWC BELGIUM 2021 Jan 17 14:57UTC

Solar activity was at very low levels. The only visible active regions on
the solar disk (NOAA 2796 beta) showed very low activity. No significant
flares were detected in the last 24 hours and none are expected in the next
24 hours. A minor possibility for a C-class flare remains. No
Earth-directed coronal mass ejections (CMEs) were detected in the available
coronagraph imagery.

The greater than 10 MeV proton flux was at nominal levels in the past 24
hours and is expected to remain so in the next 24 hours. The greater than
2MeV electron flux remained under the 1000 pfu threshold and is expected to
remain so in the next 24 hours. The 24h electron fluence was at nominal
levels and is expected to increase up to moderate levels with the arrival
of the HSS originating from the extension of the southern polar coronal
hole.

Over the past 24 hours the solar wind parameters (ACE and DSCOVR) remained
at low levels reflecting background slow solar wind conditions. The total
magnetic field and its Bz component remained very weak, varying in the
range of 1 nT to 5 nT and -4 nT to 3.6 nT, respectively. The phi angle was
predominantly in the negative sector. The solar wind speed weakly varied in
the range of 274 km/s to 347 km/s.

Quiet geomagnetic conditions were observed in the past 24 hours and quiet
to active conditions are expected in the next 24 hours with the arrival of
the HSS originating from the high latitude extension of the southern polar
coronal hole. A slight chance for a minor geomagnetic storm on Jan 18th
remains possible. A low-latitude extension of the northern polar coronal
hole crossed the central meridian early on Jan 16th and the fast stream
coming from it is expected to affect the Earth from Jan 19th on causing
more periods of unsettled to active geomagnetic conditions.

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

2021 Jan 13 1102 UTC
START OF ALL QUIET ALERT ........................ The SIDC - RWC Belgium [more]

2021 Jan 11 1035 UTC
The in situ observations show the arrival of a slow shock wave registered [more]

2020 Dec 09 1019 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]