SOHO observations
Observations of the Solar and Heliospheric Observatory (SOHO) satellite. Data from the Large Angle and Spectrometric Coronagraph (LASCO) allow to track the occurrence of coronal mass ejections in the last 48 hours, while images from Extreme ultraviolet Imaging Telescope (EIT) allow to identify presence of coronal holes. The later are seen as the dark partches present in EIT's images (like those near the polar regions). Data taken from SOHO's webpage.