Morphological changes after perihelion passage. OSIRIS RGB composites obtained in the final Rosetta multi-instrumental campaign of 2016 next to other OSIRIS RGB composites acquired before perihelion passage of July–October 2015. Labels used here are the same as labels in Tables 3 and 2 and throughout the text. Qualitatively, RGB bluer terrains correspond to a different gradient of the flat VIS-to-NIR spectral slope. In Sect. 5 we present the quantitative estimation for the ice-enriched units. (a) May 2, 2015, UTC 15:09 (F41-F23-F24, left) and July 16, 2016, UTC 19:22 (F41-F23-F24, right). Low Khonsu bank. The symbol “←” represents the displacement of jumping boulder 1. “35” indicates the source of event 35 described in Sect. 6. (b) January 16, 2015, UTC 01:27 (F22-F22-F24, left) and June 25, 2016, UTC 18:02 (F22-F22-F24, right). Partial view of the High and Low Khonsu bank.