Thermal fields retrieved from Cassini/CIRS data (Fletcher et al. 2012) and used to build the thermal fields for radiative transfer modelling. The fields shown here only represent the beacon region and its surroundings. They were derived from observations taken within our four Herschel/PACS windows, except that they do not correspond to the same date of observation. The field dates are July 7, 2011, January 27, 2012, August 16 2012, and January 5, 2013. Details on how these fields were retrieved can be found in Section 3.1.2. The first and last dates have longitudinal coverage, and the two intermediate ones have also latitudinal coverage.