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


There are 5 visible active regions on the solar disk, but none has produced
C-class flares or higher in the past 24 hours. NOAA AR 2929 and 2930, that
produced most of the activity in the last days, are rotating over the west
limb, and the others are reducing in size and complexity.  C-class flares
can still be expected in the next 24 hours.

No Earth directed CMEs have been observed in the last 24 hours.

The greater than 10 MeV proton flux had exceeded the 10 pfu threshold
yesterday, but itís now back to values below the threshold. The greater
than 2 MeV electron flux increased slightly above the 1000 pfu alert
threshold and is expected to remain close to the threshold during the next
24 hours. The 24h electron fluence was at moderate levels and is expected
to remain so in the next 24 hours.

The solar wind speed at Earth decreased to about 420 km/s, and the
interplanetary magnetic field around 4 nT. Slow solar wind conditions are
expected for the next 24 hours.

Geomagnetic conditions were quiet (K_Bel 0 - 2 and  Kp 1 - 2). The CME from
18 January may arrive to the Earth in the coming 24 hours, increasing
geomagnetic conditions to active or even minor storm levels.

Latest SWAP image

SWAP latest image

Latest USET H-alpha image
USET latest Halpha image

Latest LYRA curve

Latest LYRA Curves

Latest Callisto Observations

Daily estimated sunspot number

Most recent alerts

2022 Jan 20 0818 UTC
An M5.5 flare occurred in AR NOAA 2929, with peak at 06:01 UT. As a consequence, [more]

2022 Jan 20 0634 UTC
A class M5.5 solar X-ray flare occurred on 2022/01/20 with peak time 06:01UT [more]

2022 Jan 12 1041 UTC
A halo or partial-halo CME was detected with the following characteristics: [more]

2022 Jan 06 1235 UTC
END OF ALL QUIET ALERT ...................... The SIDC [more]