The science rationale for this observation underscores the importance of HiRISE to provide higher resolution images: the CaSSIS instrument on the ExoMars Trace Gas Orbiter detected bright patches here, so we can take a more detailed look. This footprint is in the southwestern part of an extremely old and infilled impact crater in Thaumasia Planum, wihich lies south of Melas and Coprates Chasmata.

ID: ESP_077003_1540
date: 30 December 2022
altitude: 251 km

https://uahirise.org/hipod/ESP_077003_1540
NASA/JPL-Caltech/University of Arizona
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