The SIDC is part of the Royal Observatory of Belgium
and a partner in the Solar Terrestrial Center of Excellence (STCE).
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INFO FROM SIDC - RWC BELGIUM 2019 Dec 06 12:30UTC Solar activity was at very low levels. The visible solar disk was spotless. No earth-directed coronal mass ejections (CMEs) have been observed in the available coronagraphic imagery. 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 gradually increased from 320 km/s to 390 km/s (ACE). The interplanetary magnetic field (phi angle) was predominantly directed towards the Sun (negative sector), with some short intervals in the positive sector. Bz varied between -4 and +4 nT. Geomagnetic activity was quiet, with the Kp index (NOAA) and the local k index (Dourbes) recording values of between 0-2. Quiet conditions are expected on Dec 6 and 7 with possible unsettled conditions from Dec 8, due to the influence from the patchy negative polarity coronal hole that traversed the central meridian on Dec 5. |
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