Case studies Imagery and case studies of weather phenomena and environmental events observed by EUMETSAT's fleet of weather satellites. Sort Refine results Categories Weather Meteosat Sentinel Data Tags Meteosat Second Generation (MSG) GOES Polar OLCI SEVIRI Meteosat Third Generation (MTG) Sentinel-3 Date 2018 Date December SHOW ALL Sort by Start Date Order Ascending Descending 1 result Case study 21 December 2018 03:00 UTC December solstice near the southern polar circle December solstice occurred in 2018 at 22:23 UTC on 21 December and could be 'seen' in satellite imagery.