Figure 1 :

Cassini/CIRS high-resolution nadir data available from January 2014 until January 2017 for latitudes 60–90° in the northern and southern hemisphere of Titan. This figure can be complemented for previous years by data in Fig. 1 of Coustenis et al. 2016. It shows, among other effects, the lack of enough high-resolution CIRS observations of the north pole between fall 2014 and May 2016 and of the south pole from September 2014 onwards.