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


Solar activity was at very low levels. No significant flares have been
recorded. No Earth directed Coronal Mass Ejections (CMEs) have been
detected. There was no CME observed in coronagraphic observations
associated with the event previously reported at 18:30 UT Jan 19. The
greater than 10 MeV proton flux was at nominal values. Solar activity is
expected to remain at very low levels.

The solar wind speed fluctuated between 270 and 320 km/s (ACE). The
interplanetary magnetic field (phi angle) was predominantly directed
towards the Sun (negative sector).  Bz varied between -3 and +8 nT. The
total magnetic field oscillated around 3 nT for much of period, then showed
an increasing trend from 9 UT Jan 21 reaching a maximum of around 8 nT at
12 UT.

Geomagnetic activity was quiet, with the Kp index (NOAA) and the local k
index (Dourbes) recording values of between 0-1. Mostly quiet conditions
are expected on Jan 21-23, with possible unsettled periods on Jan 21-22,
due to the influence from the patchy negative polarity coronal hole that
traversed the central meridian on Jan 16.

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 Jan 12 1232 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]