Site C lies on the larger lobe of the comet. Here, scientists have found a range of different landforms such as depressions, cliffs, hills and flat areas – and also material that appears brighter than usual on the acquired images and is thus particularly interesting. But it is precisely these surface structures that must now be looked at in more detail to assess the risks they could pose for a safe landing. The illumination conditions are good, which will be of benefit to the later phases of scientific investigation.
Site J is similar to site I – the landing site also sits on the smaller comet lobe, has interesting surface features and good lighting. This landing site is the most favourable for the CONSERT experiment, which will probe the comet's interior by studying radio waves that are reflected and scattered by the nucleus. This landing site is more favourable than landing site I. However, since there are some boulders and terracing features, higher-resolution camera images will be necessary to study the terrain in detail.
