Extended Data Fig. 4: TIR and NIRS3 data for ID46 crater without the hotspot.
From: Anomalously porous boulders on (162173) Ryugu as primordial materials from its parent body
TIR (a) and ONC-T (b) images for the ID46 crater (7.8°N, 173.0°E) without hotspots (hyb2_tir_20180921_031212_l2 and hyb2_onc_20190307_222828_tvf_l2b, respectively). The crater rim is denoted as dashed circles. Only the hot or cold regions are coloured in the TIR image (see also Extended Data Fig. 2). c, NIRS3 footprint on 30 October 2018. Blue rectangles denote the NIRS3 footprints inside the crater, and yellow rectangles denote those of the outside. d, reflectance ratio of centre-to-rim of the crater. In contrast with the ID69 crater (Fig. 2d), an absorption increase at 2.72 μm does not appear in the ID46 crater.
