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

FAST WARNING 'PRESTO' MESSAGE  from the SIDC (RWC-Belgium) 2020 Oct 19
18:24:23

The in situ observations show the arrival of the shock wave, Oct 19th at
13:45UT. The magnetic field magnitude, increased from 5 to 10 nT, with a
simultaneous increase at the solar wind speed (maximum value reached was
440 km/s), density and the temperature. The solar origin of the observed
shock is presently unclear. Currently the Bz component of the
interplanetary magnetic field returned to being negative and no geomagnetic
disturbance is expected (K Dourbes reached 3 and currently K=2 Kp=3, as
last reported by Dourbes and NOAA, respectively).

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Latest USET H-alpha image
USET latest Halpha image

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Daily estimated sunspot number
EISN

Most recent alerts

2020 Oct 19 1824 UTC
The in situ observations show the arrival of the shock wave, Oct 19th at [more]

2020 Oct 02 0839 UTC
START OF ALL QUIET ALERT ........................ The SIDC - RWC Belgium [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]