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


During the last 24 hours NOAA returning Active Region (AR) 2885 produced an
M1 flare at 02:54 UT. Several C-class flares were also produced by the 
NOAA returning ARs 2883 and 2885, while NOAA AR 2887 and 2889 produced one
C-class flare each. The remaining NOAA ARs 2888 and 2890 did not produced
any noticeable activity. One or more M-class flares might erupt in the next
24 hours and several C-class flares are expected.

Several CMEs were detected by CACTus from SOHO/LASCO C-2 data during the
last 24 hours. However, none of these are expected to be geo-effective. 

The greater than 10 MeV proton flux was at nominal levels over the past 24
hours and is expected to remain so for the next 24 hours. The greater than
2 MeV electron flux remained below the 1000 pfu alert threshold and is
expected to remain below this threshold during the next 24 hours. The 24h
electron fluence was at nominal levels and is expected to remain so.

The solar wind speed (as measured by DSCOVR)  ranged between 310 to 370
km/s. The total magnetic field ranged from 1 nT to around 9 nT. The Bz
varied between -5 and +6 nT. The interplanetary magnetic field phi angle
was predominantly in the negative sector (directed towards the Sun). The
solar wind speed is expected to continue to reflect a slow solar wind
regime for the next 24 hours.

Geomagnetic conditions were globally quiet (NOAA Kp index 1-2) and locally
mostly quiet, but temporarily reached moderate levels (K Dourbes 1-3).
Geomagnetic conditions are expected to remain quiet for the next 24 hours.

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

2021 Oct 23 1236 UTC
END OF ALL QUIET ALERT ...................... The SIDC [more]

2021 Oct 16 0803 UTC
DSCOVR registered a fast forward shock in the solar wind at 00:12 UT on [more]

2021 Oct 09 1033 UTC
A halo or partial-halo CME was detected with the following characteristics: [more]

2021 Jul 03 1820 UTC
A class X1.5 solar X-ray flare occurred on 2021/07/03 with peak time 14:29UT [more]